可能|かのうkanou[0]heiban (flat)
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- na-adjective, nounpossible; potential; practicable; feasible男の子へのしつけは可能である。↗Boys can be trained to behave.
Conjugation
| Plain form | 可能(かのう) |
|---|---|
| Polite (desu) | 可能です(かのうです) |
| Negative (dewa nai) | 可能ではない(かのうではない) |
| polite (dewa arimasen) | 可能ではありません(かのうではありません) |
| Past (datta) | 可能だった(かのうだった) |
| Past negative (dewa nakatta) | 可能ではなかった(かのうではなかった) |
| Te form (de) | 可能で(かのうで) |
| Adverbial (ni) | 可能に(かのうに) |
| Conditional (nara) | 可能なら(かのうなら) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym実行可能じっこうかのうWrittenFor plans and the like that can actually be carried out, as in 「実行可能な計画」. Narrower than 「可能」 and mostly written/formal prose.
- Synonymあり得るありうるNeutralSays something could happen or exist, as in 「十分ありうる話」. It is about possibility, not ability or feasibility.
- Related実際的じっさいてきWrittenWritten/formal: practical and useful in real situations, as in 「実際的な方法」. It stresses being pragmatic, not asking whether something is feasible.
- Related現実的げんじつてきNeutralRealistic and free of wishful thinking, as in 「現実的な案」. 「可能」 only asks whether something can be realized.
- RelatedありそうCasualColloquial: something seems likely to exist or happen, as in 「ありそうな話」. Carries the speaker's own guess.
- RelatedできるNeutralA verb used in everyday speech for what a person can do, as in 「日本語ができる」. 「可能」 mostly says a thing is feasible.
- Antonym不可能ふかのうNeutralThe direct opposite of 「可能」: something cannot be done or will never happen, as in 「不可能に近い」.
Use 「可能」 for whether something can be realized, as in 「実現可能」. Say 「できる」 when a person can do something, 「ありうる」 when something could happen, and 「現実的」 for what is realistic; the antonym is 「不可能」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


