完璧|かんぺきkanpeki[0]heiban (flat)

1. na-adjective, nounperfect; complete; flawless
   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.

• Synonym完全かんぜんNeutralMeans complete or whole, as in 「完全に終わった」; stresses that nothing is missing or lacking, while 「完璧」 stresses flawlessness.
• Synonym万全ばんぜんWrittenWritten/formal: means fully secured with no slip-ups, as in 「万全を期す」; centres on thorough preparation.
• Synonym文句なしもんくなしCasualColloquial: means beyond reproach, as in 「文句なしの出来」; stresses leaving no room for complaint.
• SynonymパーフェクトNeutralLoanword for perfect, as in 「パーフェクトな回答」「パーフェクトゲーム」; very common in speech.
• Synonym満点まんてんNeutralMeans a perfect score, also figuratively full approval; centres on evaluation and marks.
• Synonym完全無欠かんぜんむけつWrittenWritten four-character idiom for absolute flawlessness; more solemn and emphatic than 「完璧」.
• Synonym十全じゅうぜんWrittenWritten word for perfection in every respect; few examples of use.
• Synonym無欠むけつWrittenWritten word for having no flaws; mostly seen in 「完全無欠」.
• Related上々じょうじょうNeutralMeans very good, as in 「上々の出来」; stresses a satisfying result, not necessarily perfection.
• Related無傷むきずNeutralMeans unscathed, or an unbroken record as in 「無傷の10連勝」; stresses being undamaged.
• Related理想的りそうてきNeutralMeans ideal, as in 「理想的な環境」; stresses matching one's ideal.
• Related見事みごとNeutralMeans splendid or brilliant, as in 「見事な演技」; stresses being strikingly admirable.
• Related円満えんまんNeutralMeans harmonious, as in 「円満解決」「夫婦円満」; used mainly of relationships.
• Related綿密めんみつWrittenWritten word for meticulous and rigorous, as in 「綿密な計画」; stresses careful detail.
• Related周到しゅうとうWrittenWritten word for thorough, as in 「用意周到」; stresses well-rounded preparation.
• Related完備かんびNeutralMeans fully equipped with everything needed, as in 「冷暖房完備」「資料が完備している」.
• Related満足まんぞくNeutralMeans satisfied or content, as in 「結果に満足する」; centres on a subjective feeling.
• Related精到せいとうWrittenWritten word for meticulous, thorough work; few examples of use.
• Related全備ぜんびWrittenWritten word for being fully equipped; little used in modern Japanese.
• Antonym不完全ふかんぜんNeutralAntonym: imperfect or flawed; the direct opposite of 「完璧」.

Use 「完璧」 for something with no flaws at all, as in 「完璧な仕上がり」. Say 「完全」 for completeness with nothing missing, 「万全」 for thorough preparation, and 「パーフェクト」 as the loanword. The opposite is 「不完全」.

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

1. 欠点けってんが全まったくないこと。完全かんぜん。パーフェクト。