How to say "perfection" in Japanese

Choosing the right word
  • 完成かんせいJLPT N3approx.Common
    noun, suru verb, transitive verb, intransitive verbCovers 'perfection' in the sense of a work being completed or finished rather than flawless; the base meaning is completion, so use it when something has been brought to a finished state.
    新あたらしい鉄道てつどうはまだ完成かんせいしていない。↗
    The new railway is not completed yet.
  • 充実じゅうじつJLPT N1approx.Common
    noun, suru verb, intransitive verbExpresses perfection as fullness or completeness — something being substantial and lacking nothing, as in a fulfilling life or well-rounded content. It is not about flawlessness.
    ここ品物しなものは高たかいけど、その分ぶんアフターサービスが充実じゅうじつしてるから。↗
    Prices are high here but that's because the after-sale service is really good.
  • 万全ばんぜんCommon
    no-adjective, na-adjectiveCovers perfection as flawlessness, especially of preparations, arrangements, or safety measures being complete and leaving no room for failure or error.
    我が社わがしゃは、2000年問題ねんもんだいへの対応たいおうは万全ばんぜんです。↗
    We're thoroughly prepared for the Y2K bug.
  • 絶品ぜっぴんCommon
    no-adjectiveRefers to perfection only in the sense of an exquisite item or superb piece of work, such as a dish or craft; it praises a concrete thing rather than an abstract state.
    彼女かのじょがあのピンクのドレスを着きた姿すがたはまさに絶品ぜっぴんだった。↗
    In that pink dress, she was it.
  • 極致きょくちCommon
    nounCovers perfection as the culmination or acme — the utmost height a quality can reach. Suits abstract talk of elegance, beauty, or skill taken to its peak.
    ミロのヴィーナスは美びの極致きょくちだ。↗
    The Venus de Milo is the perfection of beauty.

Choose 完成 for finishing something, 充実 for fullness or completeness, 万全 for flawless preparedness, 絶品 for an exquisite work, and 極致 for the utmost height of some quality.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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