English Reference
Adjective

airtight

adj.
B2 Upper Intermediate US /ˈɛɹˌtaɪt/ UK /ˈeətaɪt/ air·tight

adj.describing a situation or plan that is so perfect that it cannot be changed or challenged. It can also describe something that is completely sealed so no air can get in or out.

adj.impermeable to air or gas; also used figuratively to describe a plan or argument that is logically sound and cannot be refuted.


SIMPLE

The new plan is airtight and will work perfectly.

CONTEXTUAL

The lawyer presented an airtight case, leaving the jury with no room to doubt the defendant's guilt.

COMPLEX

The building's windows are sealed with an airtight membrane to prevent heat loss during the winter months, significantly reducing the overall energy consumption of the structure.


From air + tight.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Occasional
Updated