How to Say “I'm surprised” in Thai
แปลกใจ
plæ̀æk-cay
I'm surprised
literally: strange heart (mind)
ค่ะ (khâ) and ครับ (khráp) are polite particles — they depend on the speaker's gender, not the listener's.
Word by word
When to use it
As its literal translation suggests, แปลกใจ (plæ̀æk-cay) describes something that happens which feels strange or out of the ordinary to your heart and mind. Use it when something feels off or hard to believe — like "that shouldn't be right" or "that shouldn't have happened." It's surprise with a flavor of mild disbelief. For a sudden, startled reaction, use ตกใจ (tòk-cay) instead.
Why you've seen it spelled differently
You may have seen แปลกใจ written as: plaek jai, plak chai, pleak jai.
There is no single standard for writing Thai in the Roman alphabet — phrasebooks, road signs, and tourist guides each follow a different system, and many just invent their own spellings. The romanization on this page uses a consistent IPA-based system that marks all five tones and distinguishes short from long vowels. The same word always gets the same spelling. Paste any Thai to see it romanized →
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