noun which may take the genitive case particle 'no'
unsinkable
Describes a ship or vessel that cannot be sunk. Often used in historical or technical contexts, such as the 'unsinkable' Titanic.
The Titanic was said to be an unsinkable ship.
unsinkable battleship
unsinkable aircraft carrier
Compound of 不 (fu, 'not') and 沈 (chin, 'sink'), literally 'not sinking'. The reading ふちん follows standard on'yomi.