airproof

/ˈɛrˌpruf/
adjective
  1. Designed to prevent air from passing through; airtight.
    • We need an airproof seal on the window to stop drafts.
    • The spacesuit is completely airproof to protect the astronaut.
    • The container is airproof, so the food stays fresh for months.
Antonyms
verb
  1. To make something airtight so that air cannot enter or escape.
    • The technician used special tape to airproof the pipes.
    • You should airproof your tent before a rainy camping trip.
    • They will airproof the room to keep out dust and pollen.
What does "airproof" mean? | whatsthatwordmean | whatsthatwordmean