seaworthy Syllabification: (sea·wor·thy)Pronunciation: /ˈsēˌwərT͟Hē/Translate seaworthy | into French | into German | into Italian | into Spanish Definition of seaworthy adjective (of a vessel) in a good enough condition to sail on the sea. Derivatives seaworthiness noun seaworthy in other Oxford dictionaries Definition of seaworthy in the British & World English dictionary