speak up vs animadvert

speak up and animadvert both are verbs.

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

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

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

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

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