non-finite vs nonfinite

non-finite and nonfinite both are adjectives.

Word	Noun	Adjective	Verb	Adverb
non-finite	No	Yes	No	No
nonfinite	No	Yes	No	No

As adjectives, non-finite and nonfinite are synonyms defined as:

non-finite and nonfinite: (of verbs) not having tense, person, or number (as a participle or gerund or infinitive)

Other synonyms of non-finite include infinite.

non-finite (adjective)	nonfinite (adjective)
(of verbs) not having tense, person, or number (as a participle or gerund or infinitive)	(of verbs) not having tense, person, or number (as a participle or gerund or infinitive)