How to say “Not” in Thai
ไม่
mâi
“not”
“Not” in Thai is ไม่, written mâi in the Latin alphabet.
Tone
ไม่ carries a falling tone — starts high, drops hard. Thai uses tone to tell words apart, so the pitch is part of the word, not an accent you can drop.
The shortest way in is an English intonation you already use. Say “NO!” out loud — snapped at a dog going for the food on the table — then say ไม่ with that same shape.