敏感|びんかんbinkan[0]heiban (flat)

1. na-adjective, nounsensitive; alert; aware; susceptible
   私は寒さむさに敏感びんかんだ。↗

   I am very sensitive to the cold.

• Synonym過敏かびんNeutralA noun for hypersensitivity beyond the normal level, as in 「過敏症」; it carries a negative, pathological nuance that 敏感 does not.
• Synonym鋭敏えいびんWrittenWritten/formal prose for keen senses and a sharp mind, with a positive nuance; 敏感 focuses on reacting readily to stimuli.
• Synonym多感たかんWrittenWritten/formal prose for being emotional and easily moved, as in 「多感な年頃」; it typically describes adolescents, unlike the broader 敏感.
• Synonym感じやすいかんじやすいNeutralAn i-adjective for being easily moved or affected by small stimuli, as in 「感じやすい年頃」; 敏感 stresses reacting quickly to stimuli and changes.
• SynonymセンシティブNeutralA katakana loanword meaning sensitive; also used of touchy topics or skin that reacts easily, as in 「センシティブな問題」.
• Related鋭いするどいNeutralCovers physical sharpness (blades) as well as keen perception or incisive remarks, as in 「鋭い指摘」; 敏感 is about sensitivity, not sharpness.
• Related神経質しんけいしつNeutralA noun for being high-strung and fussing over small things; it is pejorative, whereas 敏感 is a neutral or even positive trait.
• Antonym鈍感どんかんNeutralThe direct opposite: dull and insensitive, as in 「鈍感な人」; use it for someone who fails to notice what a sensitive person would.
• Antonym無頓着むとんちゃくNeutralMeans being indifferent and not caring about things — the opposite of the concerned, attentive attitude that 敏感 implies.

Default to 「敏感」 for quick reactions to stimuli or atmosphere, as in 「敏感肌」「流行に敏感」. Use 「感じやすい」 for being easily moved, 「過敏」 for oversensitivity, 「鋭敏」/「鋭い」 for keen senses or insight, 「多感」 for the sentimental teenage years, and 「鈍感」 for the opposite, dullness.

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

1. 感覚かんかくが敏さとく、わずかなことにもすぐ感かんじること。
2. 感覚かんかくが鋭するどく、わずかなことにもすぐ感かんじるさま。