nonentity

1 a conception or image created by the imagination and having no objective reality <the arctic circle is a nonentity—you won't see it on the way to the north pole> Synonyms chimera, conceit, daydream, delusion, dream, fancy, figment, hallucination, illusion, fantasy, phantasm (also fantasm), pipe dream, unreality, visionRelated Words ignis fatuus, mirage, will-o'-the-wisp; brainchild, idea; concoction, fable, fabrication, fiction, invention; envisaging, imaging, visualization; cloud-cuckoo-land, cloudland, Shangri-la, utopia; daymare, nightmareNear Antonyms actuality, fact, reality

2 a person of no importance or influence <was so quiet he was almost a nonentity at the meeting> Synonyms cipher, dwarf, half-pint, insect, insignificancy, lightweight, morsel, nobody, nothing, nullity, number, pip-squeak, pygmy (also pigmy), shrimp, snippersnapper, twerp, whippersnapper, zero, zilchRelated Words no-name, noncelebrity; least; inferior, mediocrity, obscurity; figurehead, puppet; nonpersonNear Antonyms chief, head, lead, leader; celebrity, luminary, notable, personality, planet, star, superstar; authority, superior; great power, party, powerAntonyms big shot, big wheel, bigwig, eminence, figure, kahuna, kingpin, magnate, nabob, personage, somebody, VIP