existent vs realism

existent is not a noun while realism is a noun.

Word	Noun	Adjective	Verb	Adverb
existent	No	Yes	No	No
realism	Yes	No	No	No

existent (noun)	realism (noun)
	the attribute of accepting the facts of life and favoring practicality and literal truth
	(philosophy) the philosophical doctrine that physical objects continue to exist when not perceived
	(philosophy) the philosophical doctrine that abstract concepts exist independent of their names
	an artistic movement in 19th century France; artists and writers strove for detailed realistic and factual description
	the state of being actual or real

existent (adjective)	realism (adjective)
having existence or being or actuality
being or occurring in fact or actuality; having verified existence; not illusory
presently existing in fact and not merely potential or possible