spruced up vs dressed-up

spruced up and dressed-up both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spruced up	No	Yes	No	No
dressed-up	No	Yes	No	No

As adjectives, spruced up and dressed-up are synonyms defined as:

Other synonyms of spruced up include dolled up, dressed, dressed to kill, dressed to the nines, spiffed up, togged up.

spruced up (adjective)	dressed-up (adjective)
dressed in fancy or formal clothing	dressed in fancy or formal clothing