陰性|いんせいinsei[0]heiban (flat)

1. no-adjectivenegative (result)
   ツベルクリン反応はんのうは陰性いんせいでした。↗

   The result of the tuberculin test was negative.
2. na-adjective, no-adjectivegloomy; negative (e.g. attitude); pessimistic

• Related湿っぽいしめっぽいNeutralNeutral adjective: literally damp, or figuratively gloomy and sentimental, as in 「湿っぽい話」. It is about mood and atmosphere, not test results.
• Related陰気いんきNeutralThe everyday word for a gloomy personality or atmosphere, as in 「陰気な人」. It describes character and mood but, unlike 「陰性」, never a test result.
• Related暗いくらいNeutralThe most versatile of these words: literally dark, or by extension a gloomy, withdrawn character, as in 「暗い性格」. It does not refer to test results.
• Related憂鬱ゆううつNeutralDescribes a depressed, heavy mood rather than a personality, as in 「月曜日は憂鬱だ」. Use it for how you feel, not for test results.
• Related陰鬱いんうつWrittenWritten/formal word for a gloomy, oppressive mood or atmosphere, as in 「陰鬱な天気」. Unlike 「陰性」, it never refers to a negative test result.
• Related陰気くさいいんきくさいCasualColloquial and slightly derogatory: describes a place or person that gives off a gloomy, oppressive air, as in 「陰気くさい部屋」.
• Related辛気臭いしんきくさいCasualColloquial, especially in Kansai: gloomy and irritating or tedious, as in 「辛気臭い話」. Adds a nuance of annoyance that 「陰性」 lacks.
• Related気鬱きうつWrittenWritten and rather rare: a noun for a heavy, depressed state of mind. It focuses on psychological gloom and does not cover test results.
• Related根暗ねくらCasualColloquial slang for a person who is gloomy to the core, gloomy by nature. Often used in a teasing way.
• Related暗鬱あんうつWrittenWritten/formal word for a dark, heavy gloom, as in 「暗鬱な時代」. It describes moods and atmospheres, not test results.
• Antonym陽性ようせいNeutralThe direct antonym in both senses: a positive test result, or a cheerful, open, optimistic personality. Where 「陰性」 is negative, this is positive.

Use 「陰性」 for a negative test result, as in 「PCR検査で陰性」, or for a gloomy personality. For everyday gloominess say 「陰気」 or 「暗い」; for a low mood, 「憂鬱」. 「陽性」 is the opposite: a positive result or a cheerful outlook.

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

1. 性格せいかくが暗くらく、後ろ向うしろむきであること。内向的ないこうてき、閉鎖へいさ的てきであること。
2. ある反応はんのうが検出けんしゅつされないこと。
3. 原子げんしが電子でんしを引き寄ひきよせ取り入とりいれようとする傾向けいこう。そのような性質せいしつを持もった原子げんしを陰性いんせい元素げんそという。電子でんしを取り入とりいれた原子げんしは負ふの電荷でんかを帯おび陰かげイオンとなる。