頓着とんちゃく
mutonchaku

Noun
na-Adjective

1. indifferent; unconcerned; nonchalant; unmindful; inattentive; careless

次郎じろうふくのことに頓着とんちゃくだ。
jirōwa fukuno kotoni mutonchakuda.
Jiro is indifferent about clothing.
Other forms: