年少|ねんしょうnenshou[0]heiban (flat)

1. no-adjective, na-adjectiveyoung; juvenile
   テレビは暴力ぼうりょく行為こういを見みせて、それがとりわけ年少ねんしょうの者ものたちに影響えいきょうを及およぼす。↗

   Television shows violence, which influences, above all, younger people.
2. nounchild in the first year of kindergarten

• Synonym若いわかいNeutralThe everyday, most common word for young; it can also describe things that are new. 「年少」 is more written in tone and states young age itself, as in 「最年少」.
• Synonym年若としわかWrittenA written-style word for being young, but rare; in ordinary speech say 「若い」 instead.
• Synonym年若いとしわかいNeutralMeans still young in age, as in 「年若い母親」; close in sense to 「年少」 but with a softer feel.
• Related幼いおさないWrittenThe spelling 「幼い」 normally reads 「おさない」 and is common in daily use; read 「いとけない」 it means young and childish, with a strong literary flavor.
• Related若々しいわかわかしいNeutralDescribes someone or something that looks and feels young and lively, as in 「若々しい声」; it does not necessarily mean young in age.
• Related幼稚ようちNeutralMeans childish or immature and often carries a negative nuance; 「年少」 is a neutral statement of young age.
• Related稚いいとけないWrittenA written, literary word for being young and innocent; 「年少」 simply states age objectively.
• Related子どもらしいこどもらしいNeutralMeans childlike — having a child's innocence and unspoiled manner; 「年少」 only states age.
• Related未成熟みせいじゅくWrittenA written word for not yet being fully developed — body, mind or skills; 「年少」 only states age.
• RelatedいたいけないWrittenA written word for a young, helpless charm that invites affection; most often seen as 「いたいけな子」.
• Related若やかわかやかWrittenA written word for a youthful, lively look or air; used only rarely.
• Antonym年長ねんちょうNeutralThe opposite of 「年少」: older in age, and also the oldest year in kindergarten.
• Antonym高齢こうれいNeutralMeans advanced age, as in 「高齢者」; the opposite end of the scale from 「年少」.

In everyday speech, say 「若い」 for young. 「年少」 is a written-style word for being young in age — 「最年少記録」, 「年少者」 — and also names the youngest kindergarten class; the opposite is 「年長」, and 「高齢」 for advanced age. The other words here add nuances: literary innocence (「稚い」, 「幼気ない」), a youthful look (「若々しい」, 「若やか」), or childishness (「幼稚」).

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 年齢ねんれいが少すくないこと。若わかいこと。
2. 幼稚園ようちえんなどで、一番いちばん下したの学年がくねん。