hermetically
In airtight fashion
Hermetically means in an airtight manner, completely sealed against the passage of air or gas: The container was hermetically sealed.
The word comes from Hermes Trismegistus, a legendary figure associated with alchemy, whose followers claimed to possess a method for making glass containers airtight.
Figuratively, hermetically describes anything completely closed off or isolated: She lived hermetically, cut off from the outside world.
Impervious to atmosphere
- vacuumAbsence of matter
- impermeableCannot be penetrated
- watertightPrevents liquid from passing
- leakproofImpervious to seepage
gasproof · encapsulated · tamper-proof · soldered · welded · bonded · fused · gasket
Set apart, private
- cloisteredSheltered from outside contact
- sequesteredRemoved from contact
- insulatedShielded from heat loss
- impenetrableImpossible to pass through
self-contained · cut-off · inaccessible · detached · withdrawn · enclosed · compartmentalized · quarantined
Concealed from view
- arcaneUnderstood by few
- secretConcealed information
- hiddenKept out of sight
- kabbalahJewish mystical tradition
gnosticism · theosophy · mystical · initiatory · veiled · cryptic · clandestine · sacred knowledge
Complete change of form
- philosopher's stoneLegendary substance enabling transmutation
- alembicDistillation apparatus
- quintessencePurest embodiment of something
- magnum opusCreator's supreme achievement
nigredo · albedo · tincture · crucible · distillation · sublimation
Sealed without air
- cannedSealed for preservation
- jarredShaken or disturbed
- sterilizedFreed from microorganisms
- freeze-driedDehydrated while frozen
lyophilized · dehydrated · shelf-stable · pasteurized · oxygen-free · cryopreserved
airtight
Impervious to atmosphere
- vacuumAbsence of matter
- impermeableCannot be penetrated
- watertightPrevents liquid from passing
leakproof · gasproof · encapsulated · tamper-proof · soldered · welded · bonded · fused · gasket · sealant
secluded
Set apart, private
- cloisteredSheltered from outside contact
- sequesteredRemoved from contact
- insulatedShielded from heat loss
impenetrable · self-contained · cut-off · inaccessible · detached · withdrawn · enclosed · compartmentalized · quarantined · cocooned
occult
Concealed from view
kabbalah · gnosticism · theosophy · mystical · initiatory · veiled · cryptic · clandestine · sacred knowledge · inner circle
transmutation
Complete change of form
- philosopher's stoneLegendary substance enabling transmutation
- alembicDistillation apparatus
- quintessencePurest embodiment of something
magnum opus · nigredo · albedo · tincture · crucible · distillation · sublimation
vacuum-packed
Sealed without air
- cannedSealed for preservation
- jarredShaken or disturbed
- sterilizedFreed from microorganisms
freeze-dried · lyophilized · dehydrated · shelf-stable · pasteurized · oxygen-free · cryopreserved
hermeticallyloosely
Without being tight
openly · incompletely · partially · imperfectly · lightly
hermeticallyopenly
Without hiding anything
accessibly · transparently · freely · inclusively · receptively
- hermetically sealedCompletely impervious to air
- hermetically sealClose off completely