pre-existent vs preexisting

pre-existent and preexisting both are adjectives.

Word	Noun	Adjective	Verb	Adverb
pre-existent	No	Yes	No	No
preexisting	No	Yes	No	No

As adjectives, pre-existent and preexisting are synonyms defined as:

Other synonyms of pre-existent include pre-existing, preexistent.

pre-existent (adjective)	preexisting (adjective)
existing previously or before something	existing previously or before something