also: むとんじゃく
indifferent; unconcerned; nonchalant
Describes a lack of interest or worry about something, often with a nuance of not caring enough. Used for people's attitudes toward appearance, rules, details, or others' opinions.
He is indifferent to his clothes.
She has a side that is unconcerned with others' opinions.
無頓着 suggests a carefree lack of concern about minor things like one's own appearance, whereas 無関心 refers to a general disinterest in external matters or issues.
無頓着 describes a general indifference or lack of concern about something, whereas 無造作 describes the casual, effortless manner of a specific action.
Standard kanji spelling. The reading むとんじゃく is also common.
Common alternative reading; same meaning.
Compound of 無 (without) and 頓着 (concern, worry). 頓着 itself is a Sino-Japanese word meaning to be preoccupied or concerned.