How to say "imbalance" in Japanese

• アンバランスCommon
  noun, na-adjectiveThe loanword, typically describing something that looks or feels out of balance — a lopsided figure, design, or combination. It states the impression of imbalance directly, without specifying what is disproportionate.
  ２国こく間かんの貿易ぼうえき上じょうのアンバランスを改善かいぜんしなければならない。↗

  The trade imbalance between two nations should be improved.
• 不均衡ふきんこうCommon
  na-adjective, nounThe Sino-Japanese term for imbalance as disproportion: one part or share out of proportion to another. Typical of writing on economics, statistics, or distribution, where amounts or levels fail to correspond.
  貿易ぼうえき不均衡ふきんこうが大おおきな問題もんだいであるように思おもえる。↗

  The trade imbalance bulks large in our minds.
• 不釣合いふつりあいCommon
  noun, na-adjectiveImbalance as a mismatch between two things that should correspond or suit each other, whether in size, amount, or fitness; a disproportion between what two sides bring or require.
  この大おおきな門もんは小ちいさな庭にわに不釣り合ふつりあいだ。↗

  This big gate is disproportionate to the small garden.
• 凹凸おうとつCommon
  nounLiterally hollows and bumps; as 'imbalance' it really means unevenness or disparity — gaps and variations across a surface, a record, or a group. Seldom the word for a straightforward lack of balance.
• 凸凹でこぼこJLPT N2approx.Common
  no-adjective, na-adjectiveThe same characters in the native reading; describes something bumpy or uneven, or gaps and ups and downs between things. For 'imbalance' it is really 'unevenness', seldom the word for disproportion.

Use 不均衡 for disproportion between quantities or shares, 「不釣合い」 for a mismatch between two things, 「アンバランス」 for something that simply looks or feels lopsided, and 凹凸/凸凹 for unevenness or gaps.

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

• アンバランスunbalance
• 不均衡ふきんこうimbalance
• 不釣合いふつりあいimbalance
• 跛行はこうimbalance
• インバランスimbalance
• 不平衡ふへいこうimbalance
• 不均等ふきんとうlack of uniformity
• 凹凸おうとつimbalance
• 凸凹でこぼこinequality
• ひずみharmful effects