鈍らす|にぶらすniburasu
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- godan verb, transitive verbto blunt; to dull; to weaken
Conjugation
| Dictionary form | 鈍らす(にぶらす) |
|---|---|
| Polite (masu) | 鈍らします(にぶらします) |
| Negative (nai) | 鈍らさない(にぶらさない) |
| polite (masen) | 鈍らしません(にぶらしません) |
| classical zu / nu | 鈍らさず・鈍らさぬ(にぶらさず・にぶらさぬ) |
| Past (ta) | 鈍らした(にぶらした) |
| polite (mashita) | 鈍らしました(にぶらしました) |
| Past negative (nakatta) | 鈍らさなかった(にぶらさなかった) |
| polite (masen deshita) | 鈍らしませんでした(にぶらしませんでした) |
| Te form | 鈍らして(にぶらして) |
| Potential | 鈍らせる(にぶらせる) |
| Passive | 鈍らされる(にぶらされる) |
| Causative | 鈍らさせる(にぶらさせる) |
| Causative passive | 鈍らさせられる(にぶらさせられる) |
| Conditional (ba) | 鈍らせば(にぶらせば) |
| tara | 鈍らしたら(にぶらしたら) |
| Volitional | 鈍らそう(にぶらそう) |
| polite (mashou) | 鈍らしましょう(にぶらしましょう) |
| Imperative | 鈍らせ(にぶらせ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
- Related緩めるゆるめるNeutralNeutral word for loosening or relaxing: it eases tension, effort, rules or restrictions, not something that dulls the senses.
- Related和らげるやわらげるNeutralSoftens or relieves, making pain and tension milder and gentler; it does not make the senses dull.
- Related弱めるよわめるNeutralEveryday word for weakening: it makes strength or degree lower in general, without the nuance of dulling a blade or the senses.
- RelatedそぐWrittenWritten register: to chip away at or dampen; most often 「やる気を削ぐ」, focusing on sapping drive and enthusiasm rather than dulling the senses.
- Antonym研ぐとぐNeutralSharpens a blade on a whetstone — the exact opposite of 「鈍らす」, which makes an edge dull.
- Antonym鋭くするNeutralPlain, ordinary way to say make something sharp or keen; it stands opposite to 「鈍らす」, which dulls.
Use 「鈍らす」 to dull a blade or dull the senses and judgment, as in 「決心を鈍らす」; the form 「鈍らせる」 is more common. For sapping drive use 「削ぐ」, for general weakening 「弱める」; 「研ぐ」 and 「鋭くする」 are the opposites.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


