幼い

• Reading: おさない
• Romaji: osanai
• Kanji breakdown: 幼 (you/osana) — infancy, young child
• Pronunciation: /o.sa.na.i/

Meaning

Very young; childish; immature. Describes someone or something characteristic of early childhood.

An i-adjective used for young children (typically under 6-7) or childlike qualities. When applied to adults, it implies immaturity (考えが幼い, one's thinking is childish). Also used nostalgically for childhood memories (幼い頃, when I was little). Distinct from 若い, which means 'young' in general.

Examples

1. 幼い子供にはまだ難しい話だ。 That topic is still too difficult for a young child.
2. 幼い頃の写真を見つけて懐かしくなった。 I found photos from when I was little and felt nostalgic.
3. 彼の考え方はまだ幼いところがある。 His way of thinking is still somewhat immature.

Usage Guide

Context: childhood, memories, personality critique

Tone: tender

Origin & History

From the classical adjective 幼し (osanashi). The kanji 幼 combines 幺 (thread/small) with 力 (power), suggesting 'little strength' — the vulnerability and smallness of a young child.

Cultural Context

Era: Classical

Generation: All ages

Social background: Universal