| 弱い | よわい | weak; frail; delicate; tender | n4 |
| 弱る | よわる | to weaken; to grow weak; to wane; to decline (of one's health) | n2 |
| 衰弱 | すいじゃく | weakness; debility; breakdown; prostration | n1 |
| 弱点 | じゃくてん | weak point; weakness; shortcoming; defect | n2 |
| 貧弱 | ひんじゃく | poor; meagre; meager; feeble | |
| 弱々しい | よわよわしい | weak; weakly; feeble; frail | n2 |
| 薄弱 | はくじゃく | feebleness; weakness | |
| 病弱 | びょうじゃく | weak (constitution); sickly; feeble; in poor health | |
| 弱味 | よわみ | (a) weakness; shortcoming; failing; sore point | n1 |
| 弱虫 | よわむし | coward; weakling; scaredy cat; wimp | |
| 弱気 | よわき | timid; weak-kneed; fainthearted; bearish | n1 |
| 弱める | よわめる | to weaken | n1 |
| 強弱 | きょうじゃく | strength and weakness; (degree of) strength; stress (of a sound); loudness | n2 |
| 弱者 | じゃくしゃ | weak person; the weak; vulnerable person; disadvantaged person | n1 |
| 弱み | よわみ | (a) weakness; shortcoming; failing; sore point | n1 |
| 弱まる | よわまる | to abate; to weaken; to be emaciated; to be dejected | n2 |
| 薄志弱行 | はくしじゃっこう | infirm of purpose and lacking in decision | |
| 脆弱 | ぜいじゃく | weak; frail; fragile | |
| 微弱 | びじゃく | feeble; faint; weak | |
| 虚弱 | きょじゃく | feebleness; weakness; imbecility | |
| 柔弱 | にゅうじゃく | weak; weak-kneed; soft; feeble | |
| 弱 | じゃく | a little less than; a little under; slightly fewer than; weakness | n2 |
| 弱音 | よわね | feeble complaint; whine | n1 |
| 心弱い | こころよわい | tenderhearted; faint of heart | |
| 気弱 | きよわ | timid; fainthearted | |
| 弱さ | よわさ | weakness | |
| か弱い | かよわい | weak; feeble; delicate; frail | |
| 繊弱 | せんじゃく | delicate; frail | |
| 脆弱性 | ぜいじゃくせい | vulnerability; weakness; fragility; vulnerability | |
| 弱冠 | じゃっかん | twenty years of age; youth; early age; tender age of ... | n1 |
| 軟弱 | なんじゃく | soft and lacking firmness; weak; fragile; weak-willed | n2 |
| 弱小 | じゃくしょう | weak and small; inferior in strength and size; minor; young | |
| 足弱 | あしよわ | having weak legs; slow walker | |
| 弱火 | よわび | low flame (cooking); low heat; simmering | |
| 弱腰 | よわごし | weak attitude | |
| 惰弱 | だじゃく | apathetic; lackadaisical; indolent; listless | |
| 胃弱 | いじゃく | dyspepsia; indigestion; weak digestion | |
| ひ弱い | ひよわい | weak; sickly | |
| 弱体 | じゃくたい | weak constitution; weak body; weak (organization, system, etc.); feeble | |
| 手弱女 | たおやめ | graceful young woman; sylph | |
| 文弱 | ぶんじゃく | (enervating) attraction to books or learning | |
| ひ弱 | ひよわ | weak; delicate; sickly | |
| 弱肉強食 | じゃくにくきょうしょく | the law of the jungle; the strong prey on the weak; the weak become the victim of the strong | n1 |
| 弱視 | じゃくし | amblyopia; weak sight | |
| 羸弱 | るいじゃく | weakness; feebleness; imbecility | |
| 懦弱 | だじゃく | apathetic; lackadaisical; indolent; listless | |
| 弱体化 | じゃくたいか | weakening | |
| 年弱 | としよわ | child born in last half of the year | |
| 幼弱 | ようじゃく | young and weak | |
| 弱年 | じゃくねん | youth | n1 |
| 老弱 | ろうじゃく | infirmities of old age; young and old; all ages | |
| 弱り目 | よわりめ | time of weakness; moment of vulnerability; time of distress | |
| 神経衰弱 | しんけいすいじゃく | neurasthenia; nervous breakdown; concentration; memory | |
| 弱輩 | じゃくはい | young person; youngster; greenhorn; novice | |
| 劣弱 | れつじゃく | inferiority | |
| 弱卒 | じゃくそつ | cowardly soldier | |
| 弱酸性 | じゃくさんせい | slight acidity | |
| 最弱 | さいじゃく | weakest | |
| 弱国 | じゃっこく | weak country | |
| 弱弱しい | よわよわしい | weak; weakly; feeble; frail | n2 |
| 弱化 | じゃっか | weakening | |
| 減弱 | げんじゃく | reduction; weakening; attenuation; diminution | |
| 弱行 | じゃっこう | weakness in execution | |
| 弱い者 | よわいもの | weak person; the weak | |
| 交通弱者 | こうつうじゃくしゃ | vulnerable road users (such as the elderly, mobility-impaired people and young children); people without public transport access; transport poor | |
| 心神耗弱 | しんしんこうじゃく | diminished capacity; diminished responsibility | |
| 弱毒 | じゃくどく | low toxicity; low virulence; attenuation | |
| 弱勢 | じゃくせい | inferiority; weakness | |
| 弱敵 | じゃくてき | weak enemy | |
| 弱電 | じゃくでん | weak electric current | |
| 腰弱 | こしよわ | bad back; spineless person | |
| 虚弱体質 | きょじゃくたいしつ | weak constitution | |
| 弱竹 | なよたけ | Simon bamboo (Pleioblastus simonii); any thin, but flexible bamboo | |
| 弱酸 | じゃくさん | weak acid | |
| 弱志 | じゃくし | weak will | |
| 弱震 | じゃくしん | mild earthquake | |
| 色弱 | しきじゃく | slight color-blindness; slight colour-blindness | |
| 弱含み | よわふくみ | bearish tendency; weak tone (of a market) | |
| 社会的弱者 | しゃかいてきじゃくしゃ | the socially vulnerable; the weak of society; socially disadvantaged people | |
| 弱齢 | じゃくれい | youth | |
| 弱塩基 | じゃくえんき | weak base | |
| 病弱者 | びょうじゃくしゃ | sickly person; invalid | |
| 心神耗弱者 | しんしんこうじゃくしゃ | person of diminished capacity (e.g. drugs, alcohol, mental retardation, etc.) | |
| 弱拍 | じゃくはく | upbeat; unaccented beat | |
| ぜい弱 | ぜいじゃく | weak; frail; fragile | |
| 弱毒化 | じゃくどくか | attenuation; weakening | |
| 弱輩者 | じゃくはいもの | inexperienced person; young person; novice; greenhorn | |
| 強弱法 | きょうじゃくほう | dynamics | |
| 強弱記号 | きょうじゃくきごう | dynamics mark; dynamics marking | |
| 情報弱者 | じょうほうじゃくしゃ | person with limited access to information (via the Internet, television, etc.) | |
| 軟弱地盤 | なんじゃくじばん | soft ground | |
| 孤弱 | こじゃく | young orphan; being alone and weak with no place to go to | |
| 大弱り | おおよわり | extremely troubled; very puzzled | |
| 弱き者 | よわきもの | weak person; the weak | |
| 弱音器 | じゃくおんき | mute; damper; sordino | |
| 衰弱死 | すいじゃくし | death from prostration; death from emaciation | |
| 軟弱者 | なんじゃくもの | coward; wimp; weak-willed person | |
| 弱っちい | よわっちい | weak; feeble | |
| 微弱陣痛 | びじゃくじんつう | hypotonic contractions (during labor (labour)); uterine inertia; weak labor; weak labour | |
| 精神薄弱 | せいしんはくじゃく | feeble-mindedness; intellectual disability | |
| 軟弱外交 | なんじゃくがいこう | weak foreign policy; weak-kneed diplomacy | |
| 怯弱 | きょうじゃく | coward | n2 |
| 堕弱 | だじゃく | apathetic; lackadaisical; indolent; listless | |
| 弱僧 | にゃくそう | young monk; boy monk | |
| 弱少 | じゃくしょう | weak and small; inferior in strength and size; minor; young | |
| 弱弟 | じゃくてい | young brother | |
| 弱起 | じゃっき | anacrusis | |
| 弱雨 | じゃくう | weak rain | |
| 情弱 | じょうじゃく | person with limited access to information (via the Internet, television, etc.); person who is inept at using the Internet to access information; Internet illiterate | |
| 愚弱 | ぐじゃく | stupid and weak | |
| 激弱 | げきよわ | extremely weak; super weak | |
| 至弱 | しじゃく | extreme weakness; utter weakness | |
| 力弱い | ちからよわい | weak | |
| 弱い力 | よわいちから | weak force; weak interaction | |
| 弱まり | よわまり | abatement; weakening | |
| 弱みそ | よわみそ | weakling; coward | |
| 弱りめ | よわりめ | time of weakness; moment of vulnerability; time of distress | |
| 弱冷車 | じゃくれいしゃ | mildly air-conditioned railway carriage | |
| 弱味噌 | よわみそ | weakling; coward | |
| 弱塩酸 | じゃくえんさん | weak acid | |
| 弱小国 | じゃくしょうこく | minor power | |
| 弱年者 | じゃくねんしゃ | youngster; young and immature person | |
| 弱材料 | よわざいりょう | bearish factor | |
| 弱気筋 | よわきすじ | bearish traders; bear interests; short side | |
| 弱結合 | じゃくけつごう | weak coupling | |
| 弱電器 | じゃくでんき | light electrical appliance | |
| 弱電線 | じゃくでんせん | weak electrical current line (e.g. intercom) | |
| 極弱火 | ごくよわび | very low flame (cooking); lowest heat | |
| 気弱い | きよわい | timid; fainthearted; weak-willed | |
| 虚弱児 | きょじゃくじ | physically weak or sickly child | |
| ごく弱火 | ごくよわび | very low flame (cooking); lowest heat | |
| ぜい弱性 | ぜいじゃくせい | vulnerability; weakness; fragility; vulnerability | |
| 一強他弱 | いっきょうたじゃく | one strong, many weak | |
| 一強多弱 | いっきょうたじゃく | one strong, many weak | |
| 一強皆弱 | いっきょうかいじゃく | one strong, everyone else weak | |
| 体が弱い | からだがよわい | frail; having a weak constitution; being in poor health | |
| 体の弱い | からだのよわい | frail; having a weak constitution; being in poor health | |
| 全身衰弱 | ぜんしんすいじゃく | general prostration | |
| 劣弱意識 | れつじゃくいしき | inferiority complex | |
| 勇将弱卒 | ゆうしょうじゃくそつ | there are no cowardly soldiers under a superior general | |
| 外交弱勢 | がいこうじゃくせい | outbreeding depression | |
| 弱いもの | よわいもの | weak person; the weak | |
| 弱い経済 | よわいけいざい | weak economy | |
| 弱くする | よわくする | to turn down (heat, sound, etc.); to weaken | |
| 弱っちぃ | よわっちい | weak; feeble | |
| 弱りきる | よわりきる | to be completely weakened; to be utterly exhausted; to be worn out; to be completely at a loss | |
| 弱りこむ | よわりこむ | to be severely troubled; to be completely at a loss; to be at one's wits' end | |
| 弱り切る | よわりきる | to be completely weakened; to be utterly exhausted; to be worn out; to be completely at a loss | |
| 弱り込む | よわりこむ | to be severely troubled; to be completely at a loss; to be at one's wits' end | |
| 弱保合い | よわもちあい | (stock market) barely holding steady | |
| 弱冷房車 | じゃくれいぼうしゃ | mildly air-conditioned railway carriage | |
| 弱気市場 | よわきいちば | bear market | |
| 弱気相場 | よわきそうば | bear market; bearish market; weak market | |
| 弱者虐め | よわいものいじめ | bullying (the weak); bully | |
| 弱腰外交 | よわごしがいこう | weak foreign policy; weak-kneed diplomacy | |
| 微弱電波 | びじゃくでんぱ | low-power transmission; weak signals | |
| 意志薄弱 | いしはくじゃく | weak-willed; lacking a purpose; lacking will power to be patient, purposeful, or resolute | |
| 手弱女振 | たおやめぶり | feminine poetic style (e.g. in the Man'yōshū) | |
| 根拠薄弱 | こんきょはくじゃく | unsubstantiated; flimsy | |
| 気が弱い | きがよわい | timid; faint of heart | |
| 気の弱い | きのよわい | timid; faint of heart | |
| 精神衰弱 | せいしんすいじゃく | psychasthenia | |
| 肺が弱い | はいがよわい | having a weak chest | |
| 脆弱国家 | ぜいじゃくこっか | fragile state | |
| 自殖弱勢 | じしょくじゃくせい | inbreeding depression | |
| 軟弱路線 | なんじゃくろせん | weak-hearted approach; soft line; easier way (route) | |
| 近交弱勢 | きんこうじゃくせい | inbreeding depression | |
| 酒に弱い | さけによわい | weak-headed; can't drink much; can't hold one's liquor; can't take one's drink | |
| 頭の弱い | あたまのよわい | dim witted; bird-brained; dullard | |
| ネット弱者 | ネットじゃくしゃ | person with limited Internet skills; Internet illiterate | |
| 内容が貧弱 | ないようがひんじゃく | lacking substance; poor in content | |
| 弱い者虐め | よわいものいじめ | bullying (the weak); bully | |
| 弱みを握る | よわみをにぎる | to have (someone) by the short hairs; to have something on (someone) | |
| 弱りはてる | よわりはてる | to be completely weakened; to be utterly exhausted; to be worn out; to be completely at a loss | |
| 弱り果てる | よわりはてる | to be completely weakened; to be utterly exhausted; to be worn out; to be completely at a loss | |
| 弱り衰える | よわりおとろえる | to languish | |
| 弱含み市況 | よわふくみしきょう | soft market; bear market | |
| 弱味を握る | よわみをにぎる | to have (someone) by the short hairs; to have something on (someone) | |
| 弱変化動詞 | じゃくへんかどうし | weak verb | |
| 弱者いじめ | よわいものいじめ | bullying (the weak); bully | |
| 弱音をはく | よわねをはく | to whine; to make feeble complaints | |
| 弱音を吐く | よわねをはく | to whine; to make feeble complaints | |
| 惚れた弱み | ほれたよわみ | being a slave of love | |
| 惚れた弱味 | ほれたよわみ | being a slave of love | |
| 手弱女振り | たおやめぶり | feminine poetic style (e.g. in the Man'yōshū) | |
| 押しに弱い | おしによわい | weak-willed; easily pressured; pushover | |
| 本番に弱い | ほんばんによわい | failing under pressure; not performing well under pressure | |
| 精神薄弱児 | せいしんはくじゃくじ | intellectually disabled child; child with an intellectual disability | |
| 精神薄弱者 | せいしんはくじゃくしゃ | feeble-minded person; intellectually disabled person | |
| 弱いもの虐め | よわいものいじめ | bullying (the weak); bully | |
| 弱い相互作用 | よわいそうごさよう | weak interaction | |
| 弱い者いじめ | よわいものいじめ | bullying (the weak); bully | |
| 弱い者イジメ | よわいものいじめ | bullying (the weak); bully | |
| 弱毒ワクチン | じゃくどくワクチン | attenuated vaccine | |
| 語気を弱める | ごきをよわめる | to soften one's voice | |
| ゼロデイ脆弱性 | ゼロデイぜいじゃくせい | zero-day vulnerability | |
| 弱いものいじめ | よわいものいじめ | bullying (the weak); bully | |
| 弱いものイジメ | よわいものいじめ | bullying (the weak); bully | |
| 弱みにつけこむ | よわみにつけこむ | to take advantage of (someone's) weakness | |
| 弱みにつけ込む | よわみにつけこむ | to take advantage of (someone's) weakness | |
| 弱みに付け込む | よわみにつけこむ | to take advantage of (someone's) weakness | |
| 弱り目に祟り目 | よわりめにたたりめ | misfortunes never come singly; when it rains, it pours; adding insult to injury | |
| 強弱アクセント | きょうじゃくアクセント | stress accent | |
| 弱い石にツケるな | よわいいしにつけるな | don't attach to weak stones; don't attach when attacking | |
| 弱い石に付けるな | よわいいしにつけるな | don't attach to weak stones; don't attach when attacking | |
| 弱り目にたたりめ | よわりめにたたりめ | misfortunes never come singly; when it rains, it pours; adding insult to injury | |
| 弱り目にたたり目 | よわりめにたたりめ | misfortunes never come singly; when it rains, it pours; adding insult to injury | |
| 勇将の下に弱卒なし | ゆうしょうのもとにじゃくそつなし | followers take after their leaders; there are no cowardly soldiers under a brave general | |
| 勇将の下に弱卒無し | ゆうしょうのもとにじゃくそつなし | followers take after their leaders; there are no cowardly soldiers under a brave general | |
| 弱きを助け強きを挫く | よわきをたすけつよきをくじく | help the weak and crush the strong | |
| 弱き者よ汝の名は女也 | よわきものよなんじのなはおんななり | frailty, thy name is woman | |
| 弱き者汝の名は女なり | よわきものなんじのなはおんななり | frailty, thy name is woman | |
| 女は弱しされど母は強し | おんなはよわしされどはははつよし | though the woman is weak, the mother is strong | |
| 女は弱し然れど母は強し | おんなはよわしされどはははつよし | though the woman is weak, the mother is strong | |
| 弱きを助け強きをくじく | よわきをたすけつよきをくじく | help the weak and crush the strong | |
| 弱き者よ汝の名は女なり | よわきものよなんじのなはおんななり | frailty, thy name is woman | |
| 強きを挫き弱きを助ける | つよきをくじきよわきをたすける | help the weak and crush the strong | |
| 強きをくじき弱きを助ける | つよきをくじきよわきをたすける | help the weak and crush the strong | |
| 至弱をもって至強にあたる | しじゃくをもってしきょうにあたる | attack your enemy's strength with your weakness | |