one's age; age-appropriate behavior
Often used in the phrase 年甲斐もない (immature for one's age) or 年甲斐もなく (acting inappropriately for one's age).
Despite his age, he is absorbed in the game.
Saying such a thing is unbecoming of your age.
Standard kanji spelling.
Search-only kanji form; not a standard written variant.
Compound of 年 (toshi, 'year, age') and 甲斐 (kai, 'worth, effect'). The reading toshigai reflects rendaku voicing of kai.