nonsinkable
Cannot go under
Nonsinkable means incapable of sinking, designed or constructed to stay afloat: The nonsinkable life raft kept them alive for three days.
The word is synonymous with unsinkable, though less common.
It often describes boats, flotation devices, or materials that maintain buoyancy even when damaged or waterlogged.
Able to float
- watertightPrevents liquid from passing
- TitanicIll-fated 1912 vessel
- lifeboatEmergency vessel for survivors
- flotationAbility to stay afloat
seaworthy · hull · bilge · compartmentalized · bulkhead · airtight · submersible · vessel
Able to recover quickly
- indestructibleImpossible to damage permanently
- unstoppableImpossible to halt
- undefeatableImpossible to vanquish
- invincibleIncapable of being defeated
enduring · persistent · unbreakable · steadfast · tenacious · durable · robust · surviving
Bubble-filled substance
- corkTree bark bottle seal
- buoyancyFluid's upward resistance
- polystyreneLightweight synthetic foam plastic
- inflatableExpandable by air
hollow · lightweight · aerated · sealed · waterproof · plastic · fiberglass · rubber
buoyant
Able to float
- watertightPrevents liquid from passing
- TitanicIll-fated 1912 vessel
- lifeboatEmergency vessel for survivors
flotation · seaworthy · hull · bilge · compartmentalized · bulkhead · airtight · submersible · vessel · shipbuilding
resilient
Able to recover quickly
- indestructibleImpossible to damage permanently
- unstoppableImpossible to halt
- undefeatableImpossible to vanquish
invincible · enduring · persistent · unbreakable · steadfast · tenacious · durable · robust · surviving · thriving
foam
Bubble-filled substance
- corkTree bark bottle seal
- buoyancyFluid's upward resistance
- polystyreneLightweight synthetic foam plastic
inflatable · hollow · lightweight · aerated · sealed · waterproof · plastic · fiberglass · rubber · life jacket
nonsinkablesinkable
Able to go under
submersible · water-logged · submerging · heavy · dense
sink, sinking, sunk, sunken, sinkhole, sinker, unsinkable, sinkholes, sinkable