無頓着(むとんちゃく)

むとんちゃく
na-adjective
indifferent, unconcerned, careless
personality
1. indifferent, unconcerned, careless
Not paying attention to or caring about something, particularly appearance, manners, or details that others typically notice.
服装(ふくそう)に無頓着(むとんちゃく)だ。
He is indifferent to clothing.
彼(かれ)は時間(じかん)に無頓着(むとんちゃく)で、いつも遅刻(ちこく)する。
He is careless about time and is always late.
食(た)べ物(もの)に無頓着(むとんちゃく)な人(ひと)もいれば、こだわる人(ひと)もいる。
Some people are indifferent about food, while others are particular about it.

Forms

  • Predicative: 無頓着(むとんちゃく)だ
  • Modifier: 無頓着(むとんちゃく)な + noun

Usage

Almost always used with the particle に to indicate what one is indifferent about: ～に無頓着(むとんちゃく). Common topics include 服装(ふくそう) (clothing), 身(み)だしなみ (grooming), 食(た)べ物(もの) (food), and 時間(じかん) (time).

Etymology

無(む) (without) + 頓着(とんちゃく) (concern, care). 頓着(とんちゃく) alone is rarely used in modern Japanese.

Related Words

Synonym: 無関心(むかんしん) (uninterested, broader)
Compare: 無関心(むかんしん)さ (indifference)
general
Added 2026.2.11 21:59 · Revised 2026.9.2 13:01
10500/10911_mutonchaku