disapprove (verb)

Synonyms: disapprove, object, criticise, condemn
Antonym: approve


disapprove: to show that you do not think something is good
Example: The head teacher disapproves of members of staff wearing jeans to school.

object: to say that you do not like something or you do not want something to
Example: He objected that the pay was too low.  I object to her being given this
private information.

criticise: to say that something or someone is bad or wrong
Example: She criticised their lack of interest and enthusiasm.  The design of the new
car has been criticised.

condemn: to say strongly that you do not approve of something
Example: She condemned the police for their treatment of the prisoners.

approve: to think something is good