ムッとmutto
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- suru verb, intransitive verb, adverbto be offended; to get angry; to be annoyed; to be miffed; to be huffy; to be sullen; to be upset
- suru verb, intransitive verb, adverbto be stuffy; to be stifling; to be muggy
- adverbfirmly (shutting one's mouth)
Conjugation
| Dictionary form | ムッとする |
|---|---|
| Polite (masu) | ムッとします |
| Negative (nai) | ムッとしない |
| polite (masen) | ムッとしません |
| classical zu / nu | ムッとせず・ムッとせぬ |
| Past (ta) | ムッとした |
| polite (mashita) | ムッとしました |
| Past negative (nakatta) | ムッとしなかった |
| polite (masen deshita) | ムッとしませんでした |
| Te form | ムッとして |
| Potential | ムッとできる |
| Passive | ムッとされる |
| Causative | ムッとさせる |
| Causative passive | ムッとさせられる |
| Conditional (ba) | ムッとすれば |
| tara | ムッとしたら |
| Volitional | ムッとしよう |
| polite (mashou) | ムッとしましょう |
| Imperative | ムッとしろ |
Common forms generated by rule; see the senses for honorific or irregular usage.
- RelatedむっつりNeutralSullen and silent all along; stresses sustained taciturnity, whereas 「ムッと」 is a momentary show of displeasure.
- Related機嫌悪くNeutralBeing in a bad mood; stresses a lasting sulk, while 「ムッと」 is a momentary flash of displeasure.
- AntonymニコニコNeutralGrinning cheerfully; the opposite of 「ムッと」, which is suddenly scowling.
- Antonym朗らかほがらかNeutralCheerful and sunny; the opposite of 「ムッと」, which shows displeasure on one's face.
Use 「ムッとする」 for a sudden flash of displeasure, as in 「失礼な言い方にムッとした」, or for stifling heat as in 「ムッとする暑さ」. For a lasting bad mood use 機嫌悪く, for sustained sullen silence むっつり; ニコニコ and 朗らか are opposites.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


