How to say "flawless" in Japanese

• 完璧かんぺきJLPT N1approx.Common
  na-adjective, nounCovers flawless in the sense of perfect or without fault in quality, work, or performance. It describes something executed or achieved so well that nothing is missing or wrong.
  君きみは完璧かんぺきな仕事しごとをしてくれた。↗

  You've done a perfect job.
• 無傷むきずCommon
  no-adjective, na-adjectiveCovers flawless in the physical sense of unblemished or undamaged, as in a gem with no flaws or an item in perfect condition. It emphasizes the absence of damage rather than overall perfection.

Use 完璧 for flawless meaning perfect in quality or performance, and 無傷 for flawless meaning physically undamaged or unblemished, such as a gem or an object in perfect condition.

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

• 完璧かんぺきperfect
• 無欠むけつflawless
• 完全無欠かんぜんむけつflawless
• 面向不背めんこうふはいflawless
• 金甌無欠きんおうむけつflawless
• 天衣無縫てんいむほうperfect beauty with no trace of artifice
• 非の打ち所がないひのうちどころがないfaultless
• 寸分の狂いもないすんぶんのくるいもないaccurate
• 無傷むきずflawless (e.g. gem)