Home › Words › U › unseaworthinessunseaworthinessunseaworthiness means the state or condition of being unseaworthy.Among words judged in Lexicurio's Arena, unseaworthiness ranks #16,733 of 42,749 for Qualifying.EtymologyFrom unseaworthy + -ness.nounThe state or condition of being unseaworthy.Definitions & examples from Wiktionary (CC BY-SA 3.0).