unsay vs take back

unsay and take back both are verbs.

Word	Noun	Adjective	Verb	Adverb
unsay	No	No	Yes	No
take back	No	No	Yes	No

As verbs, unsay and take back are synonyms defined as:

Other synonyms of unsay include swallow, withdraw.

unsay (verb)	take back (verb)
take back what one has said	cause someone to remember the past
	take back what one has said
	move text to the previous line; in printing
	bring back to the point of departure
	regain possession of something
	resume a relationship with someone after an interruption, as in a wife taking back her husband