jlptsensei.com/learn-japanese-grammar/%E3%81%84-adjective-%E3%81%8F%E3%81%99%E3%82%8B-ku-suru-meaning/
Grammar lesson on the くする (ku suru) pattern for making something an adjective quality, with usage rules for い-adjectives and example sentences with translations.
GrammarJLPT and other testsJLPT N4Example sentencesJLPTAdjectivesSpaced repetitionTranslation