How to say "trait" in Japanese

Choosing the right word
  • 特徴とくちょうJLPT N3approx.Common
    nounCovers trait in its most general sense: a feature or characteristic that makes a person or thing recognizable or distinctive. Use it when simply describing what someone or something is like.
    毛深けぶかいまゆ毛げが彼かれの顔かおの特徴とくちょうだった。↗
    His bushy brows accented his face.
  • 特性とくせいCommon
    nounCovers trait as a special quality or property inherent in a thing, such as a material or product, and sometimes in character. Choose it to stress that the quality is distinctive and intrinsic.
    ブタはある特性とくせいを人間にんげんと共有きょうゆうしている。↗
    Pigs share certain characteristics with human beings.
  • 気質きしつJLPT N1approx.Common
    noun, noun (suffix)Covers trait as an aspect of temperament or disposition, a person's ingrained mental or emotional makeup. Use it for personality traits such as a cheerful or stubborn nature, not for features of objects.
    成功せいこう不ふ成功せいこうは気質きしつに左右さゆうされることが多おおい。↗
    Success often depends on one's temperament.
  • 習性しゅうせいCommon
    nounCovers trait as behavior or nature, characteristic and habitual ways of acting rather than static qualities. It is really a word for how people and animals behave, not for features or attributes.

Use 特徴 for a general distinguishing feature, 特性 for a special quality or property inherent in something, 気質 for temperament or disposition, and 習性 for characteristic behavior or nature.

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

Japanese equivalents
  • 特徴とくちょうfeature
  • 特性とくせいspecial characteristic
  • 気質きしつdisposition
  • 一癖ひとくせtrait
  • 形質けいしつ(phenotypic) trait
  • 習性しゅうせいbehavior
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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