What does unseaworthy mean?
Unseaworthy describes something, most often a vessel, that is not fit to travel safely at sea. It is the negative form of seaworthy and carries a stronger implication than merely being inconvenient: an unseaworthy vessel is judged unsafe or unsuitable for a sea voyage. The term is most common in maritime, insurance, inspection, and legal contexts, where it can describe a boat, ship, or other craft. In broader figurative use, it means badly unsuited to a difficult task, such as a plan for an environment in which it cannot function reliably. Because the word focuses on fitness for purpose, it differs from merely describing poor condition: even a vessel in good repair may be unseaworthy if its design, equipment, or loading makes it unsafe. It is a precise and somewhat formal term, with an obvious opposite in seaworthy and a related abstract noun in unseaworthiness, although that noun is less usual than seaworthiness.
adjectiveNot seaworthy; unfit or unsafe for a sea voyage.
- Not fit or safe for travel or operation at sea.
"After the storm, inspectors declared the vessel unseaworthy and ordered it to remain in port."
"The old ferry was found to be unseaworthy after years of neglect."
"The insurer disputed the claim, arguing that the boat had been unseaworthy before the accident."
A ship may look impressive and still be unseaworthy if it is unfit for the sea it must cross.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unseaworthy come from?
Unseaworthy is an English formation made by attaching the negative prefix un- to the adjective seaworthy. Seaworthy in turn combines sea with worthy, an English word ultimately related to Germanic roots expressing value or worth. The prefixed form developed in maritime usage to mean unfit or unsafe for a sea voyage, and it has since also been used figuratively for people, plans, or equipment judged unsuitable for a demanding role.
Related word forms
How unseaworthy is actually used
Primarily a formal maritime, legal, and insurance term. It can also be used figuratively for a plan, person, or piece of equipment considered unsuitable for a demanding or hazardous role.