If you say so
Informal Depends on context
What it really means
Polite disbelief: "I do not agree, but I will not argue". It quietly hands you the responsibility for being right. Slightly passive-aggressive, so use it with care.
Chinese explanation
礼貌版的不信："我不同意，但懒得争。"言下之意是对错的责任归你。略带阴阳怪气，自己用时要小心。
Example conversation
A: This shortcut will definitely save us twenty minutes.
B: If you say so.
A: (Forty minutes later, still walking.)
A：这条近路绝对能省二十分钟。
B：你说是就是吧。
A：（四十分钟后，还在走。）
What you could say back
No spoken reply needed for this one.
Related phrases
All Politeness Decoder
Reviewed by the UK Decoded editorial team
· Last checked 24 July 2026 · Report a mistake