air tight
No gaps whatsoever
Airtight means sealed so completely that air cannot enter or escape: an airtight container, an airtight seal.
The figurative sense describes arguments, alibis, or cases with no gaps or weaknesses—nothing can get through: The prosecution built an airtight case.
Also spelled as one word: airtight.
- gasketMechanical leak preventer
- hermeticImpenetrably closed off
- jarWide-mouthed storage vessel
- leakproofImpervious to seepage
- sealAuthentication stamp or mark
vacuum · vacuum sealed · bulletproof · indisputable · unassailable · irrefutable · open and shut · impermeable · bottle · lid · watertight · close · cling film · screw cap · capsule · nonporous · tamper-proof · oxygen-free