retract vs repudiate

retract and repudiate both are verbs.

Word	Noun	Adjective	Verb	Adverb
retract	No	No	Yes	No
repudiate	No	No	Yes	No

As verbs, repudiate is a hypernym of retract; that is, repudiate is a word with a broader meaning than retract:

retract: formally reject or disavow a formerly held belief, usually under pressure
repudiate: cast off

Other hypernyms of retract include disown, renounce.

retract (verb)	repudiate (verb)
formally reject or disavow a formerly held belief, usually under pressure	refuse to acknowledge, ratify, or recognize as valid
pull inward or towards a center	cast off
use a surgical instrument to hold open (the edges of a wound or an organ)	reject as untrue, unfounded, or unjust
pull away from a source of disgust or fear	refuse to recognize or pay