Synonyms of impassable

2 Syllables

dead-end, pathless, trackless, deadend, no-go, no-way, no-win, noway

3 Syllables

impervious, blockaded, obstructed, forbidden, untrodden, bulletproof

4 Syllables

imperviable, unpierceable, impossible, unreachable, ungettable, impermeable, invincible, unworkable

5 Syllables

inapproachable, indomitable, impenetrable, insurmountable, invulnerable, inaccessible, unattainable, unattackable, irrealizable, unachievable, undefeatable, unsurmountable, unobtainable, unmasterable, unrealizable