porous Antonyms

nonporous burglarproof raincoat watertight light-tight leakproof cagoule airtight windtight closely set water-resistant close-woven close-textured air-locked waterproofed rustproof close-set airproof air-proof weatherproof waterproofing waterproof impassable hermetical gastight dense constipated consistent compact ballproof impenetrable impermeable unpassable tight shellproof piercing mackintosh inclosed impervious imperviable air-tight