How to say "laid-back" in Japanese

• 能天気のうてんき
  na-adjective, nounFor a carefree, easygoing person who worries about nothing and takes everything lightly; the built-in hint of thoughtlessness can sound critical, and being less common it is seldom the word you want.
• まったりCommon
  adverb (with と), suru verbCovers laid-back as a lifestyle or mood: relaxed, comfortable, unhurried — taking it easy on a slow afternoon at home. This common mimetic word is usually the one you want.
• サバサバ
  adverb (with と), suru verbDescribes a frank, candid personality — someone who speaks plainly and doesn't brood. Its laid-back sense is just this easygoing personality trait, so for a relaxed mood or lifestyle it is not the word you want.

Choose 「まったり」 for a relaxed lifestyle or atmosphere, 「サバサバ」 for a frank, easygoing personality, and 能天気 for a carefree, untroubled (sometimes thoughtless) temperament; of the three, only 「まったり」 is common.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 能天気のうてんきlaid-back
• まったりlaid-back (lifestyle)
• ルーズlaid-back (e.g. beat, rhythm)
• さばさばfrank