Dictionary / Vocabulary / 無頓着
むとんちゃく · also むとんじゃく
indifferent; unconcerned; nonchalant; unmindful
夫は服装に無頓着です。
My husband is indifferent to his clothes.
彼女はお金に無頓着だったので、今では金に困っている。
She was careless with money, so now she's in trouble financially.
彼は服装には無頓着です。
He is indifferent to what he wears.