十分(じゅうぶん)

じゅうぶん
na-adjective, adverb
enough, sufficient
1. enough, sufficient, adequate
Having as much as is needed; meeting requirements satisfactorily.
これで十分(じゅうぶん)です。
This is enough.
十分(じゅうぶん)気(き)をつけてください。
Please be very careful.
Adverbial use meaning 'fully'
時間(じかん)は十分(じゅうぶん)ありますか。
Do you have enough time?
休(やす)みが十分(じゅうぶん)に取(と)れなくて、毎日(まいにち)眠(ねむ)いです。
I haven't been getting enough rest, so I'm sleepy every day.
準備(じゅんび)は十分(じゅうぶん)ですか。まだ何(なに)か必要(ひつよう)なものはありますか。
Are the preparations adequate? Is there anything else you need?

十分(じゅうぶん) can be a na-adjective or adverb.

GRAMMAR:

  • Na-adjective: 十分(じゅうぶん)な量(りょう) (sufficient amount)
  • Adverb: 十分(じゅうぶん)分(わ)かった (fully understood)

COMMON PATTERNS:

  • 十分(じゅうぶん)ある: there is enough
  • 十分(じゅうぶん)な: sufficient (modifying noun)
  • 十分(じゅうぶん)に: sufficiently, fully

SIMILAR WORDS:

  • 足(た)りる: to be enough (verb)
  • たっぷり: plenty (casual)
  • 十(じゅう)分(ぷん): 10 minutes (different word!)

Note: Don't confuse with 十(じゅう)分(ぷん) (10 minutes). The reading {じゅうぶん} means 'enough' while {じゅっぷん/じっぷん} means '10 minutes'.

Related Words

Antonym: 不足(ふそく) (shortage)
Antonym: 不十分(ふじゅうぶん) (insufficient)
core
Added 2026.1.9 21:01 · Revised 2026.4.11 10:25
01500/01614_juubun