pumped up vs pumped-up

pumped up and pumped-up both are adjectives.

Word	Noun	Adjective	Verb	Adverb
pumped up	No	Yes	No	No
pumped-up	No	Yes	No	No

As adjectives, pumped up and pumped-up are synonyms defined as:

pumped up and pumped-up: tense with excitement and enthusiasm as from a rush of adrenaline

Other synonyms of pumped up include pumped, wired.

pumped up (adjective)	pumped-up (adjective)
tense with excitement and enthusiasm as from a rush of adrenaline	tense with excitement and enthusiasm as from a rush of adrenaline