adjective, sea·wor·thi·er, sea·wor·thi·est. (of a vessel) 1.constructed, outfitted, manned, and in all respects fitted for a voyage at
sea.
2.safe for a voyage at
sea.
Related forms sea·wor·thi·ness, noun
un·sea·wor·thi·ness, noun
un·sea·wor·thy, adjective