noun
adult; grown-up; person who has come of age
Abbreviation of 一丁前. Used to refer to someone who is considered an adult or has reached maturity, often with a nuance of being treated as a full-fledged member of society.
See also: 一丁前
もういっちょ前の大人なんだから、自分のことは自分でしなさい。
You're a grown-up now, so take care of your own things.
noun which may take the genitive case particle 'no'
fully fledged; established; qualified
Abbreviation of 一丁前. Describes someone or something that has reached a competent, independent, or respectable level, often used in the phrase いっちょ前になる or いっちょ前の～.
See also: 一丁前
彼もいっちょ前の職人になったね。
He's become a fully fledged craftsman, hasn't he?
いっちょ前に口答えするようになった。
He's started talking back like he's all grown up.