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