天真爛漫

• Reading: てんしんらんまん
• Romaji: tenshinranman
• Kanji breakdown: 天 (ten) — heaven; 真 (shin) — true, genuine; 爛 (ran) — brilliant, glittering; 漫 (man) — unrestrained, overflowing
• Pronunciation: /te.ɴ.ɕiɴ.ɾaɴ.maɴ/

Meaning

Innocent; naive; artless; ingenuous. Describes a spontaneous, uninhibited cheerfulness free from pretence or social calculation.

A four-character compound (四字熟語, yojijukugo) used as a na-adjective. It describes a personality—typically a person's natural, uncalculated openness to the world. Unlike naivety that implies ignorance or foolishness, 天真爛漫 is generally positive, suggesting a luminous purity of character. Often used to describe children, charismatic figures, or individuals who retain a childlike spontaneity into adulthood.

Examples

1. 彼女の天真爛漫な笑顔に、周囲の人々はいつも癒されていた。 Her artless, radiant smile was a source of comfort to everyone around her.
2. その子役は台本通りではなく、天真爛漫に演じることで観客を魅了した。 The child actor captivated audiences not by following the script but by performing with natural, unguarded spontaneity.
3. 社会経験を重ねても彼の天真爛漫さは失われず、それが強みだった。 Even with years of worldly experience behind him, he never lost his guileless openness, and that was his strength.

Usage Guide

Context: character description, literature, compliment, personality

Tone: positive

Origin & History

A four-character compound: 天真 (tenshin, natural truth, heavenly innocence) + 爛漫 (ranman, brilliant, radiant, blooming everywhere). Together they describe a brilliantly open, spontaneously natural character—as if the person were perpetually in full bloom.

Cultural Context

Era: Classical

Generation: All ages

Social background: Universal