oscillate vs vacillate

oscillate and vacillate both are verbs.

Word	Noun	Adjective	Verb	Adverb
oscillate	No	No	Yes	No
vacillate	No	No	Yes	No

As verbs, oscillate and vacillate are synonyms defined as:

oscillate and vacillate: be undecided about something; waver between conflicting positions or courses of action

Other synonyms of oscillate include hover, vibrate.

oscillate (verb)	vacillate (verb)
move or swing from side to side regularly	move or sway in a rising and falling or wavelike pattern
be undecided about something; waver between conflicting positions or courses of action	be undecided about something; waver between conflicting positions or courses of action