Last Updated
：2025/12/07
act one's age, not one's shoe size
Verb
idiomatic
imperative
not one's shoe size
usually
Japanese Meaning
年齢に応じた、成熟した振る舞いをする。 / 子供っぽい行動を避け、大人として相応しい行動を取る。
（ canonical ）
（ present singular third-person ）
（ participle present ）
（ participle past ）
（ past ）
Quizzes for review
(idiomatic, usually imperative) Synonym of act one's age (“to behave in a mature manner; to avoid being childish”).
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act one's age, not one's shoe size
In the office manual, the guideline was simple: act one's age, not one's shoe size when interacting with clients.
See correct answer
In the office manual, the guideline was simple: act one's age, not one's shoe size when interacting with clients.
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