Liberal Dictionary English Dictionary
adjective
- preventing the entrance or escape of air or gas.
- having no weak points or openings of which an opponent may take advantage: an airtight contract.
adjective
- not permitting the passage of air either in or out
- having no weak points; rigid or unassailablethis categorization is hardly airtight
also air-tight, “impervious to air,” 1760, from air (n.1) + tight. Figurative sense of “incontrovertible” (of arguments, alabis, etc.) is from 1929.