年甲斐もない · i-adjective
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 年甲斐もない | 年甲斐もなくない |
| Polite | 年甲斐もないです | 年甲斐もなくないですalso 年甲斐もなくありません |
| Past polite | 年甲斐もなかったです | 年甲斐もなくなかったですalso 年甲斐もなくありませんでした |
| Past | 年甲斐もなかった | 年甲斐もなくなかった |
| Te-form | 年甲斐もなくて | 年甲斐もなくなくて |
| Adverbial | 年甲斐もなく | |
| Conditional | 年甲斐もなければ | 年甲斐もなくなければ |
| Tara conditional | 年甲斐もなかったら | 年甲斐もなくなかったら |
unbecoming of one's age; not acting one's age; unworthy of one's years
Used to criticize behavior, appearance, or attitude that is considered inappropriate for someone's age, often implying immaturity or lack of dignity. Commonly used in the phrase 年甲斐もなく.
He is absorbed in video games, which is unbecoming of his age.
Don't you think wearing such flashy clothes is not acting your age?
大人げない means 'childish' or 'immature' and focuses on lack of adult composure, while 年甲斐もない specifically emphasizes that the behavior is inappropriate for one's age, often with a nuance of disgrace.
年相応 means 'age-appropriate' and is often used positively or neutrally, whereas 年甲斐もない is always negative, criticizing something as not befitting one's age.
Standard kanji-kana mixed spelling. The form 年甲斐も無い is also seen but less common in modern writing.
Variant with 無い instead of ない. Slightly more formal or literary feel.
Kana spelling for 甲斐, often used in casual writing or when the kanji is considered difficult.
Formed from 年甲斐, the conduct or maturity appropriate to one’s age, and もない “to lack even that.”