nonexistent adjective 2noun 1forms 1 adjective2 •Not existent or existing; not real."Hrunk" is a nonexistent word.His social skills are nonexistent: he chewed with his mouth open all through dinner. •Not present or occurring.Large cranes were virtually non-existent in the areas I worked with this truck, so we jacked everything on and off[.] — 2000 noun1 •Something that does not exist.By showing that no true statements were about nonexistents, he dismissed any facts or knowledge about the so-called beingless. — 2011 formsnonexistents