Словарь синонимов английского языка - impossible

(adj) 1. hopeless, impracticable, inconceivable, unimaginable, unthinkable, unattainable, unsuitable, out of the question, unachievable, unrealizable, unworkable, unresolvable, unsolvable: Reading of the cipher is impossible without a key. 2. absurd, ludicrous, preposterous, ridiculous, illogical, unworkable, outrageous, farcical, outlandish, crazy, weird: Inventors came up with the most impossible designs for aeroplanes.