蒸し暑い (mushiatsui) conjugation
humid, sultry
蒸し暑い (むしあつい, mushiatsui) is an i-adjective. I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
Conjugation table
| Form | Plain (casual) | Polite (~です) | When you use it |
|---|---|---|---|
| Dictionary / plain | 蒸し暑い mushiatsui | 蒸し暑いです mushiatsuidesu | The form you look up. Also the casual “is ~”. |
| Negative | 蒸し暑くない mushiatsukunai | 蒸し暑くないです mushiatsukunaidesu | “is not ~”. |
| Past | 蒸し暑かった mushiatsukatta | 蒸し暑かったです mushiatsukattadesu | “was ~”. |
| Past negative | 蒸し暑くなかった mushiatsukunakatta | 蒸し暑くなかったです mushiatsukunakattadesu | “was not ~”. |
| Te-form | 蒸し暑くて mushiatsukute | — | Links to the next clause: “~ and …”. |
| Adverb | 蒸し暑く mushiatsuku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 蒸し暑い〜 mushiatsui〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 蒸し暑ければ mushiatsukereba | — | “if it is ~”. |
| Conditional (~たら) | 蒸し暑かったら mushiatsukattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 蒸し暑くなる mushiatsukunaru | 蒸し暑くなります mushiatsukunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 蒸し暑すぎる mushiatsusugiru | 蒸し暑すぎます mushiatsusugimasu | “too ~”. |
| Looks ~ (~そう) | 蒸し暑そう mushiatsusou | 蒸し暑そうです mushiatsusoudesu | “looks / seems ~” from appearance. |
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Why it conjugates this way
I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
See the full rules in the adjective conjugation guide.