impervious

I adjective adrogans, airtight, blind to, blocked, buffered, callous, closed, deaf to, dense, detached, hard, hard to convince, hardened, hermetic, impassable, impassive, impeditus, impenetrabilis, impenetrable, imperforate, impehosus, impermeable, impersuadable, impersuasible, imperturbable, imperviable, impervious, imporous, inaccessible, incapable of being affected, incapable of being impaired, incapable of being influenced, incapable of being injured, indifferent, indurate, indurated, insensate, insensitive, inured, invious, locked, not permitting passage, not permitting penetration, obstinate, obstructed, obtuse, opaque, pachydermatous, pathless, protected, safe, sealed, seared, shielded, shut, steeled, stubborn, thick, thick-skinned, tight, unaffected, unamenable, uninfluenceable, uninfluenced, unmovable, unmoved, unnavigable, unopened, unpassable, unperforated, unpierceable, unreachable, unreceptive, unresponsive, unswayable, unventilated, unyielding, waterproof, watertight II index callous, cold-blooded III index impervious IV index inexpressive, insuperable, insusceptible (uncaring), obdurate, opaque, safe, torpid, unaffected (uninfluenced)