鈍い

• 読み: にぶい
• ローマ字: nibui
• 漢字の分解: 鈍 (nibu/don) — dull, blunt, slow
• 発音: /ni.bɯ.i/

意味

Dull; blunt; slow; obtuse. Describes a blade that is not sharp, a person who is slow to understand, senses that are weak, or movements that are sluggish.

An i-adjective with multiple applications: (1) a physical blade that is not sharp (鈍い刃, blunt edge), (2) slow mental processing (頭が鈍い, slow-witted), (3) dull or weak sensory perception (感覚が鈍い, diminished senses), and (4) sluggish physical reaction (動きが鈍い, slow movements). The common thread is a lack of sharpness or acuity. Contrast with 鋭い (surudoi, sharp/keen).

例文

1. このナイフは刃が鈍くて、パンを切るのに苦労した。
2. 痛みの感覚が鈍い人は、怪我に気づかないことがある。
3. 彼は反応が鈍いが、一度理解すれば誰よりも深く考える。

使い方ガイド

場面: everyday speech, physical descriptions, personality commentary

トーン: neutral

起源と歴史

From Old Japanese 鈍 (nibu), meaning dull or blunt. The kanji 鈍 combines 金 (metal) with a component suggesting roundness or obtuseness — a blade without a fine edge.

文化的背景

時代: Ancient–Modern

世代: All ages

社会的背景: Universal