animadvert vs speak up

animadvert and speak up both are verbs.

Word	Noun	Adjective	Verb	Adverb
animadvert	No	No	Yes	No
speak up	No	No	Yes	No

As verbs, animadvert and speak up are synonyms defined as:

animadvert and speak up: express one's opinion openly and without fear or hesitation

Other synonyms of animadvert include opine, sound off, speak out.

animadvert (verb)	speak up (verb)
express one's opinion openly and without fear or hesitation	express one's opinion openly and without fear or hesitation
express blame or censure or make a harshly critical remark	speak louder; raise one's voice