Словарь синонимов английского языка - unheard-of

(adj) 1. unknown, unfamiliar, obscure, unidentified, nameless, unsung: She is busy trying to promote some unheard-of cculptor. 2. unimaginable, undreamed of or undreamt of, unprecedented, unimagined, unbelievable, inconceivable, unusual: They took the unheard-of step of requiring that refunds be paid. Her starting salary is an unheard-of