真しん性せい

し

ん

せ

い

Freq.FrequencyTop 20,000

Meanings

Refers to a person's innate disposition or the fundamental nature of something. Often used in formal or literary contexts.

彼かれの真しん性せいはとても優やさしい。
His true nature is very kind.

noun which may take the genitive case particle 'no'

genuine; intrinsic; essential

Used as a no-adjective to describe something that is authentic, inherent, or not superficial. Common in medical or technical contexts (e.g., 真性糖尿病 'true diabetes').

これは真しん性せいのダイヤモンドです。
This is a genuine diamond.
真しん性せいの芸げい術じゅつ家かは滅めっ多たにいない。
True artists are rare.

See all 7 example sentences ›

Usage patterns

真しん性せいの〈事こと〉true/genuine (form of a condition or trait), as opposed to a superficial or apparent one
彼かれは真しん性せいの糖とう尿にょう病びょうと診しん断だんされた。
He was diagnosed with true diabetes.

Kanji

真true, reality, Buddhist sect
性sex, gender, nature

Related words

本ほん性しょう sense 1
本性 is a person's true, often hidden nature revealed under pressure, while 真性 is a more formal/literary term for innate or essential quality.
本ほん物ものN4sense 2
本物 is an everyday noun for 'the real thing', while 真性 is a more formal, often technical word used attributively (真性の〜) to mark authenticity or an underlying essential quality.
天てん性せい sense 1
天性 highlights an inborn talent or gift someone is born with, whereas 真性 more broadly describes inherent or essential nature, not necessarily a talent.
本ほん質しつN1sense 1
本質 refers to the fundamental essence of a thing or matter in a philosophical sense, while 真性 is often used to mark something as genuine or non-superficial, especially in medical terms.

Opposites

仮か性せい sense 2
仮性 describes a condition that only resembles the real thing (e.g. 仮性近視), directly contrasting with 真性, which marks the genuine, true form of a condition (真性近視).
疑ぎ似じ
疑似 describes a suspected, unconfirmed case of a disease, while 真性 designates a confirmed, genuine case.

Etymology

Compound of 真 (しん, 'true') and 性 (せい, 'nature, character'). The reading is on'yomi, and the word is used in both classical and modern Japanese to denote inherent or genuine qualities.