impervious Synonyms

imperviable impassable impenetrable impermeable unapproachable runproof leakproof light-tight lightproof bulletproof watertight raincoat burglarproof calloused unmoved cagoule unpassable unpenetrable waterproof wayless weatherproof woundless unsusceptible unmolested nonabsorbent acid-fast armour-plated airtight submersible case-hardened mothproof unattainable un-come-at-able uninjectable unpierceable unrealizable unreceptive untouched untraversable untrod unvanquishable waterproofed unachievable shatterproof no-go water-resistant water-repellent soundproof hermetically sealed unresponsive