hermetic Synonyms

zip-locked gas-tight airtight windtight weatherproof waterproof tight snug shut shellproof seclusive secluded sealed resistant leakproof lightproof unpiercable damp-proof vacuum-packed unpierceable rainproof hermetically sealed dripless airproof air-proof water-resistant watertight bulletproof recondite proof profound firm esoteric deep compact close closed chemic cabalistic ballproof arcane alchemic air-tight acroamatic gastight hermetical orphic occult mysterious magic