肯定 (kěn dìng) means “to be certain; to be positive; assuredly; definitely; to give recognition; to affirm; affirmative (answer)”. It is an HSK 4 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
我肯定他会来。
Wǒ kěndìng tā huì lái.
I'm sure he'll come.
Updated: 2026-05-27