Adjectives that take な before a noun — they conjugate like nouns (じゃない / だった).

• きれいkireipretty / clean — な-adj despite the い ending
• しずかshizukaquiet (na-adj)
• すきsukiliked / to like (na-adj)
• きらいkiraidisliked / to dislike — na-adj despite the い ending
• げんきgenkihealthy / energetic (na-adj)
• ゆうめいyuumeifamous (na-adj)
• べんりbenriconvenient (na-adj)
• だいじょうぶdaijoubuokay / fine (na-adj)
• にぎやかnigiyakalively / bustling (na-adj)
• ひまhimafree / not busy (na-adj)
• たいせつtaisetsuimportant (na-adj)
• しんせつshinsetsukind (na-adj)
• かんたんkantaneasy / simple (na-adj)
• じょうずjouzugood at / skilled (na-adj)
• へたhetabad at / unskilled (na-adj)
• だいすきdaisukilove / really like (na-adj)
• ふべんfubeninconvenient (na-adj)
• ていねいteineipolite (na-adj)