くせにEven though (with blame)
くせに presents an unexpected inconsistency while openly criticizing or resenting the person or thing involved. It is stronger and more confrontational than a neutral “even though.”
What the contrast implies
The first part gives a fact, role, ability, or attitude that creates an expectation. The second part describes behavior that violates that expectation, and the speaker treats the inconsistency as worthy of criticism. English translations such as “even though” or “despite” often fail to show how accusatory the Japanese sounds.
Criticizing someone else
Keep the person being criticized easy to identify across both parts of the sentence.
彼は何度も注意されたくせに、また同じミスをした。
Even though he had been warned repeatedly, he made the same mistake again.
AnalyzeThe speaker is not merely reporting a surprising result; they are criticizing him for ignoring the warnings.
彼は責任者のくせに、問題が起きるといつも人のせいにする。
He is the person in charge, yet whenever a problem occurs, he always blames someone else.
AnalyzeWith a noun, the criticism often rests on what the speaker expects from that role or status.
弟は暇なくせに、少しも手伝ってくれない。
My younger brother has plenty of free time, but he will not help at all.
AnalyzeReproaching yourself
私は準備不足だと分かっていたくせに、何とかなると思っていた。
Even though I knew I was not sufficiently prepared, I thought things would somehow work out.
AnalyzeHere the blame is directed inward: the speaker criticizes their own unreasonable confidence.
Ending with an unfinished accusation
また一人で先に食べたの？
Did you start eating by yourself again?
Analyze君だって、昨日は私を待たなかったくせに。
You did not wait for me yesterday either.
AnalyzeThe ending leaves the rest unstated: roughly, “so you have no right to criticize me.” This trailing form sounds emotional and conversational.
Blame versus ordinary disappointment
Use のに for a broader unexpected result or disappointment when direct blame is not intended. Replacing it with くせに would add a sharper accusation.
雨が降っているのに、子どもたちは外で遊んでいる。
Even though it is raining, the children are playing outside.
AnalyzeThis can simply describe an unexpected situation; no one must be blamed.
More examples
あの人は約束したくせに、連絡もせずに来なかった。
That person made a promise, yet did not come or even get in touch.
Analyze私は早く寝るつもりだったくせに、また夜更かししてしまった。
I meant to go to bed early, yet I ended up staying up late again.
Analyze彼は詳しくないくせに、何でも知っているように話す。
He does not know much about it, yet he talks as if he knows everything.
Analyzeこの店は有名なくせに、接客がひどい。
This restaurant is famous, yet its service is terrible.
Analyzeこの傘は高いくせに、二回使っただけで壊れた。
This umbrella was expensive, yet it broke after only two uses.
Analyze何も知らないくせに、勝手なことを言わないで。
You do not know anything about it, so do not make such thoughtless remarks.
Analyze自分だって約束を忘れたくせに！
You forgot the promise too!
Analyze