Air-tight
Air-tight ({not transcribed}) , adjective
1.
So tight as to be impermeable to air or other gases; as, an air-tight cylinder; -- said of containers.
2.
of such close construction as to have little leakage of air in or out; -- said of structures
3.
so thoroughly convincing as to be insusceptible to doubt; having no apparent counterarguments; -- of arguments or assertions
Air-tight , noun
A stove the draft of which can be almost entirely shut off. [Colloquial United States]