Synonyms of 'think better of something'
▷ See think
change your mind about, reconsider, decide against
He opened his mouth to protest. Then he thought better of it.
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If you reconsider a decision or opinion, you think about it and try to decide whether it should be changed.
We want you to reconsider your decision to resign.
We urge you to reconsider.
Thesaurus for think better of something from the Collins English Thesaurus