unsinkable Syllabification: (un·sink·a·ble)Pronunciation: /ˌənˈsiNGkəbəl/Translate unsinkable | into Italian Definition of unsinkable adjective (of a ship or boat) unable to be sunk:the supposedly unsinkable ship hit an icebergDerivatives unsinkabilityPronunciation: /-ˌsiNGkəˈbilətē/ noun unsinkable in other Oxford dictionaries Definition of unsinkable in the British & World English dictionary