じゃっかん 弱冠 LinksSentence search for 弱冠Sentence search for じゃっかんSentence search for 若冠Kanji details for 弱 and 冠Edit in JMdict Noun1. twenty years of ageNoun2. youth; early age; tender age of ...Other forms若冠 【じゃっかん】Notes若冠: Irregular kanji usage. Discussions Log in to talk about this word.