recant

Synonyms: abjure abnegate abrogate annul apostatize back down back off back out backtrack call back cancel contradict countermand deny dial back disavow disclaim disown eat one’s words forswear go back on one’s word nullify recall renege renounce repeal repudiate rescind retract revoke take back unsay void weasel out welsh withdraw worm out of

Antonyms: confirm emphasize recapitulate