The word "resay" refers to saying something again or repeating what has already been said. Its antonyms, i.e., words that have the opposite meaning, include words like silence, keep quiet, hold back, refrain, suppress and withhold. These words indicate the opposite of speaking out loud, expressing oneself or voicing one's thoughts. While it may be necessary to resay something in certain situations, the use of these antonyms might help prevent misunderstandings or conflicts that may arise otherwise. In a nutshell, using these antonyms could be helpful in certain situations where holding back or refraining from speaking out is the better course of action.