How to say "disagreement" in Japanese

• 不同意ふどういCommon
  nounRefers to actually withholding agreement or consent — disapproval or objection to a proposal, plan, or request. Use it when someone says no to what another party wants, rather than for a mere difference of views.
• 食い違いくいちがいCommon
  nounCovers disagreement in the sense of a mismatch or gap — conflicting opinions, accounts, or facts that do not line up. Typical when two reports, testimonies, or positions clash with each other.
  ２人ふたりの意見いけんには大おおきな食い違くいちがいがあった。↗

  There was a great gap between the views of the two.
• 不服ふふくJLPT N1approx.Common
  noun, na-adjectiveNot really 'disagreement' as such; it means dissatisfaction or discontent, especially grumbling about a decision or outcome one finds unfair. Seldom the word you want unless the disagreement takes the form of displeasure at a ruling.
  彼かれは不服ふふくそうに口くちをとがらせた。↗

  He pouted with dissatisfaction.
• 不和ふわCommon
  nounDisagreement as discord or dissension between people — a state of strained or troubled relations. Fits families, colleagues, or parties whose relationship has soured over conflict, rather than a single stated objection.
  ２人ふたりの少年しょうねんは口論こうろんがもとで不和ふわになった。↗

  A quarrel estranged one boy from the other.
• 否いなCommon
  nounA formal or literary term for disagreement as an outright negative answer or objection. It is not everyday speech for 'disagreement'; in ordinary contexts another word will usually serve better.

For personal refusal or objection use 不同意; for a mismatch between views, accounts, or facts use 「食い違い」; for strained relationships use 不和; 不服 expresses dissatisfaction with a decision, and 否 is a formal literary 'no'.

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

• 不同意ふどういdisagreement
• 食い違いくいちがいdifference
• 不服ふふくdissatisfaction
• 不和ふわdiscord
• 牴牾ていごdisagreement
• 不承ふしょうdissent
• 不一致ふいっちdiscrepancy
• 不賛成ふさんせいdisapproval
• 不承諾ふしょうだくdissent
• 不承知ふしょうちdissent
• 否いなdisagreement
• 不協和音ふきょうわおんdiscord (in a relationship)
• 行き違いいきちがいdifference of opinion
• 隙げきdiscord
• すれ違いすれちがい(being at) cross purposes
• 掛け違いかけちがいdisagreement