のうてんき 能天気 LinksSentence search for 能天気Sentence search for のうてんきSentence search for 能転気Sentence search for 脳天気Sentence search for ノー天気Sentence search for ノーてんきKanji details for 能, 天 and 気Edit in JMdict Na-adjective (keiyodoshi), Noun1. laid-back; carefree; easygoing; thoughtless; happy-go-luckyOther forms能転気 【のうてんき】、脳天気 【のうてんき】、ノー天気 【ノーてんき】 Discussions Log in to talk about this word.