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airtight

English

  1. 🔊 not allowing air or gas to pass in or out
  2. 🔊 having no weak points
    “an airtight defense”

Similar words

air-tight gas-tight air-tight ballproof bombproof bulletproof burglarproof close compact corrosionproof dampproof dustproof dusttight fast fire-resisting fireproof firm flameproof foolproof gasproof gastight hermetic hermetically sealed holeproof