watertight
Impervious to liquid
Watertight describes something sealed so completely that water cannot enter or escape: a watertight container, a watertight seal.
The figurative sense dominates: a watertight alibi has no gaps; a watertight argument cannot be refuted; a watertight contract leaves no room for dispute.
The common thread is impermeability—nothing gets through.
Mechanical leak preventer
- o-ringToroidal sealing element
- caulkWaterproof gap filler
- sealantGap-blocking substance
- siliconeFlexible synthetic polymer
epoxy · rubber · neoprene · flange · hermetic · plumber's putty · polyurethane · Teflon tape
Cannot be penetrated
- submersibleUnderwater exploration vehicle
- marineRelating to the sea
- hullOuter covering or frame
- bilgeShip's water-collecting depths
hatch · bulkhead · compartment · corrosion-resistant · hydraulic · valve · piping · drainage
Impossible to disprove
- unassailableImpossible to attack successfully
- airtightImpervious to atmosphere
- bulletproofResistant to gunfire
- ironcladImpossible to dispute
sound · cogent · compelling · incontrovertible · indisputable · conclusive · foolproof · unimpeachable
gasket
Mechanical leak preventer
silicone · epoxy · rubber · neoprene · flange · hermetic · plumber's putty · polyurethane · Teflon tape · joint compound
impermeable
Cannot be penetrated
- submersibleUnderwater exploration vehicle
- marineRelating to the sea
- hullOuter covering or frame
bilge · hatch · bulkhead · compartment · corrosion-resistant · hydraulic · valve · piping · drainage · tank
irrefutable
Impossible to disprove
- unassailableImpossible to attack successfully
- airtightImpervious to atmosphere
- bulletproofResistant to gunfire
ironclad · sound · cogent · compelling · incontrovertible · indisputable · conclusive · foolproof · unimpeachable · rock-solid
weatherproof
Resistant to outdoor elements
impervious · resistant · shielded · enclosed · secure · dry · protected · splashproof · rainproof · stormproof
- TitanicTitanic, RMS Titanic, iceberg, sinking, lifeboats
- boat descriptorsseaworthy, sailing, motorized, anchored, moored
- certaintycertain, sure, uncertain, unsure, definite
- container traitsairtight, leakproof, sealed, stackable, reusable
- durabilitytoughness, durable, sturdiness, robustness, sturdy
- waterproofimpermeable, impervious, hydrophobic, sealed, weatherproof
watertightflawed
Having faults or imperfections
contestable · weak · shaky · full of holes · vulnerable