Synonyms of impossible in English:

impossible


See definition of impossible

adjective

1‘gale force winds made fishing impossible’

SYNONYMS

not possible, beyond the bounds of possibility, out of the question, not worth considering

unfeasible, impractical, impracticable, non-viable, unworkable, beyond one

unthinkable, unimaginable, inconceivable

paradoxical, illogical, irrational

informal undoable, like herding cats

ANTONYMS

possible, easy

2‘six months ago his ambition had seemed an impossible dream’

SYNONYMS

unattainable, unachievable, unobtainable, hopeless, impractical, implausible, far-fetched, impracticable, unworkable

forlorn, vain

incredible, unbelievable, absurd, ludicrous, ridiculous, laughable, risible, preposterous, outlandish, outrageous

wild, hare-brained

ANTONYMS

possible, attainable

3‘a ban on buses would have made life impossible for many residents’

SYNONYMS

unbearable, intolerable, unendurable, unsustainable

informal no-win

ANTONYMS

bearable, tolerable

4‘your mother is the most impossible woman in the world’

SYNONYMS

unmanageable, intractable, recalcitrant, wayward, objectionable, difficult, demanding, awkward, perverse, ungovernable

informal intolerable, unbearable, unendurable

informal exasperating, maddening, infuriating

ANTONYMS

manageable, easy to please