impervious Synonyms - page 2

unprocurable rainproof unreachable rustproof uncaring closed to unmovable armor-plated immune impersuasible imporous impregnable inaccessible inapproachable inclosed indifferent inexecutable infeasible innavigable hermetic heartless ballproof bombproof caecal callous cast iron cold cold-hearted cool dead-hearted hardened hard-mouthed insensible insensitive resistive sealed shellproof stiff-backed stockish tearless thick-skinned tight unaffected uncomeatable unconcerned resistant repellent insurmountable insusceptible invious