How to say "flaw" in Japanese

Choosing the right word
  • 欠点けってんJLPT N3approx.Common
    nounThe general word for a shortcoming or weak point: a flaw in a person's character or ability, or in a plan. The usual choice when 'flaw' means a personal shortcoming.
    欠点けってんがあるけどやはり彼かれが好すきです。↗
    I love him despite his faults.
  • 難点なんてんCommon
    nounThe fault you single out when evaluating something; often the one drawback in a person or thing that is otherwise satisfactory. Essentially 'drawback' or 'the weak point' in an assessment.
    あそこの食べ物たべものはうまいし値段ねだんも安やすいが、地ちの利りが悪わるいのが難点なんてんだね。↗
    That place's food is great, and their prices are good, but the fly in the ointment is their terrible location.
  • 欠陥けっかんJLPT N3approx.Common
    nounA defect in a product, structure, system, or design — something actually faulty or lacking, not merely a minor shortcoming. Use for 'flaw' when the thing itself is defective.
    このシステムには明あきらかな欠陥けっかんがある。↗
    This system has obvious defects.
  • 瑕疵かしCommon
    nounA flaw or defect in goods, workmanship, or an argument; the word of contracts and legal writing, also used for flaws in reasoning.
  • 汚点おてんCommon
    nounReally 'a stain or blot': a figurative blemish on a person's record, career, or reputation — a disgrace — rather than a physical defect. Only fits 'flaw' in that figurative sense; not for defects in things.
    その事件じけんは彼かれの名声めいせいに汚点おてんを残のこした。↗
    The incident left a spot on his reputation.

欠点 covers shortcomings of people or plans, 難点 the drawback that stands out in an evaluation, 欠陥 defects in products or structures, 瑕疵 defects in goods or reasoning, and 汚点 a figurative stain on a reputation.

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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