unknot vs untangle

unknot and untangle both are verbs.

Word	Noun	Adjective	Verb	Adverb
unknot	No	No	Yes	No
untangle	No	No	Yes	No

As verbs, unknot and untangle are synonyms defined as:

unknot and untangle: become or cause to become undone by separating the fibers or threads of

Other synonyms of unknot include unpick, unravel, unscramble.

unknot (verb)	untangle (verb)
become or cause to become undone by separating the fibers or threads of	become or cause to become undone by separating the fibers or threads of
	release from entanglement of difficulty