jlptsensei.com/learn-japanese-grammar/%E3%81%AA%E3%81%8B%E3%81%AA%E3%81%8B%EF%BD%9E%E3%81%AA%E3%81%84-nakanaka-nai-meaning/
A lesson on the JLPT N4 grammar pattern なかなか~ない, explaining its meaning as "not easy to" or "struggling to" with eight example sentences in Japanese, romaji, and English.
GrammarJLPT and other testsJLPT N4Example sentencesJLPTSpaced repetitionJLPT N3TranslationAdjectives