決め込む · godan verb (-mu)
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 決め込む | 決め込まない |
| Polite | 決め込みます | 決め込みません |
| Past polite | 決め込みました | 決め込みませんでした |
| Past | 決め込んだ | 決め込まなかった |
| Te-form | 決め込んで | 決め込まないで |
| Desire | 決め込みたい | 決め込みたくない |
| Potential | 決め込める | 決め込めない |
| Passive | 決め込まれる | 決め込まれない |
| Causative | 決め込ませる | 決め込ませない |
| Causative passive | 決め込ませられるalso 決め込まされる | 決め込ませられないalso 決め込まされない |
| Volitional | 決め込もう | |
| Polite volitional | 決め込みましょう | |
| Imperative | 決め込め | 決め込むな |
| Conditional | 決め込めば | 決め込まなければ |
| Tara conditional | 決め込んだら | 決め込まなかったら |
godan verb (-mu), transitive verb
assume; take for granted; jump to the conclusion
Used when someone firmly decides something is true without sufficient evidence, often with a negative connotation of being presumptuous or stubborn.
He takes it for granted that I will agree.
まだ結果が出ていないのに、失敗だと決め込むのは早い。
It's too early to jump to the conclusion that it's a failure when the results aren't out yet.
godan verb (-mu), transitive verb
Often used with nouns or adjectives to indicate acting as if one were something or in a certain state, e.g., 知らん顔を決め込む (pretend not to know).
彼は知らん顔を決め込んで、質問に答えなかった。
He pretended not to know and didn't answer the question.
彼女は被害者を決め込んでいるが、実は加害者だ。
She poses as a victim, but in fact she is the perpetrator.
godan verb (-mu), transitive verb
persist in doing; go through with; make up one's mind to do
Emphasizes a strong determination to carry out a decision, often despite obstacles or criticism. Can imply stubbornness.
彼は反対されても自分の計画を決め込んだ。
He persisted in carrying out his plan despite opposition.
一度決め込んだら、彼は絶対に諦めない。
Once he makes up his mind, he never gives up.
Rare variant with 極; may be encountered in older texts.