nonpermeable
Allows nothing through
Nonpermeable means not allowing liquids or gases to pass through.
A nonpermeable membrane blocks substances from crossing; a nonpermeable surface repels water rather than absorbing it.
The term appears in technical and scientific contexts: nonpermeable barriers, nonpermeable packaging.
Impermeable is the more common form.
Unable to be affected
- impenetrableImpossible to pass through
- impassableImpossible to traverse
- airtightImpervious to atmosphere
- watertightPrevents liquid from passing
solid · dense · resistant · unyielding · intact · unbroken · continuous · unpierced
Waterproof outer garment
- tarpaulinWaterproof protective sheeting
- galoshesWaterproof shoe covers
- umbrellaHandheld rain shelter
- ponchoHeadhole garment for rain
wetsuit · drybag · slicker · oilskin · anorak · waders · rainwear · water-repellent
Elastic polymer from trees
- siliconeFlexible synthetic polymer
- plasticCapable of being molded
- vinylSynthetic resin plastic
- neopreneSynthetic rubber polymer
latex · gore-tex · polyethylene · nylon · glass · metal · concrete · clay
Protecting from harm
- insulationThermal transfer prevention
- encapsulationSurrounding on all sides
- containmentPreventing hostile expansion
- encasementProtective outer shell
lining · coating · covering · cladding · wrapping · jacketing · liner · bladder
impervious
Unable to be affected
- impenetrableImpossible to pass through
- impassableImpossible to traverse
- airtightImpervious to atmosphere
watertight · solid · dense · resistant · unyielding · intact · unbroken · continuous · unpierced · hermetic
raincoat
Waterproof outer garment
poncho · wetsuit · drybag · slicker · oilskin · anorak · waders · rainwear · water-repellent · hydrophobic
rubber
Elastic polymer from trees
neoprene · latex · gore-tex · polyethylene · nylon · glass · metal · concrete · clay · wax
shielding
Protecting from harm
- insulationThermal transfer prevention
- encapsulationSurrounding on all sides
- containmentPreventing hostile expansion
encasement · lining · coating · covering · cladding · wrapping · jacketing · liner · bladder · gasket
airtight
Impervious to atmosphere
- vacuum-sealedEnclosed without air
- gasketedFitted with sealing ring
- cappedGiven a maximum limit
stoppered · plugged · corked · lidded · enclosed · bonded · welded · soldered · glued · tamper-proof
nonpermeablepermeable
Allowing substances through
porous · pervious · penetrable · absorbent · breathable
permeate, permeable, impermeable, permeating, permeates, impermeability, permeability, semipermeable