Rebuke means to sharply criticize, reprimand or reprove.
Rebuke is a verb.
Synonyms: remonstrate, berate, censure, chide, criticize, admonish, scold,upbraid.
Antonyms: congratulate, praise, applaud, compliment.
Noun: Rebuke can also be a noun, meaning a scolding or a reprimand
The teacher was too quick to rebuke and too slow to applaud the students.
Durga rebuked her husband for not bringing the vegetables—she scolded him for over an hour.
The principal gave the students a rebuke they would not soon forget.