1.
enough; sufficient; adequate
Having as much as is needed to meet a requirement or standard.
十分な睡眠を取ってください。
Please get enough sleep.
準備は十分ですか。
Are the preparations sufficient?
経験が十分でないため、もう少し練習が必要だ。
Because my experience is not sufficient, I need a bit more practice.
2.
ample; plenty; thorough
Having more than enough, or being satisfactorily complete and thorough.
十分な成果が出た。
Ample results were achieved.
この説明で十分だと思います。
I think this explanation is thorough enough.
十分な時間をかけて検討した結果、この方針に決めた。
After considering it with ample time, we decided on this policy.
Also used as an adverb 十分に (sufficiently; thoroughly). Can also be read じっぷん when meaning "ten minutes," but the na-adjective meaning is always じゅうぶん. The negative form 十分でない or 不十分な (insufficient) is equally common.
COMMON COLLOCATIONS:
- 十分な時間: enough time
- 十分な睡眠: enough sleep
- 十分な準備: adequate preparation
- 十分な証拠: sufficient evidence
- 不十分な: insufficient; inadequate
SIMILAR WORDS:
- 充分な: sufficient — variant kanji form with the same meaning and pronunciation; both are standard
- 足りる: to be enough — a verb rather than an adjective; more conversational
- 豊富な: abundant; rich — implies having much more than needed, especially variety