dressed to the nines vs dressed

dressed to the nines and dressed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dressed to the nines	No	Yes	No	No
dressed	No	Yes	No	No

As adjectives, dressed to the nines and dressed are synonyms defined as:

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

dressed to the nines (adjective)	dressed (adjective)
dressed in fancy or formal clothing	dressed or clothed especially in fine attire; often used in combination
	(of lumber or stone) to trim and smooth
	treated with medications and protective covering
	dressed in fancy or formal clothing