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[see-wur-th ee] /ˈsiˌwɜr ði/
adjective, seaworthier, seaworthiest. (of a vessel)
constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
safe for a voyage at sea.
Origin of seaworthy
First recorded in 1800-10; sea + -worthy
Related forms
seaworthiness, noun
unseaworthiness, noun
unseaworthy, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for unseaworthy
Historical Examples
  • So many doublings and devices were required to get to sea with an unseaworthy ship and a captain that was "wanted."

    The Wrecker Robert Louis Stevenson and Lloyd Osbourne
  • Moreover, when there is time to use the boats, they are too often found to be unseaworthy.

  • This ancient shipping was poor, unseaworthy stuff by any modern standards.

  • Ships were allowed to be sent to sea in an unseaworthy condition.

    Windjammers and Sea Tramps Walter Runciman
  • My shipmates and myself were in great hope that the vessel would be condemned as unseaworthy.

  • (b) To ensure that the necessary repairs and dry docking of unseaworthy ships are carried out by the German authorities.

    To Kiel in the 'Hercules' Lewis R. Freeman
  • My dear sir, we are all—except you—wrecks here, all unseaworthy at least.

    The Great God Success John Graham (David Graham Phillips)
  • A vessel captain with common sense will not go to sea in a storm, or navigate a weak, unseaworthy craft.

    Flying Machines W.J. Jackman and Thos. H. Russell
  • This list was to show clearly which vessels were considered seaworthy, and if unseaworthy, from what cause.

    To Kiel in the 'Hercules' Lewis R. Freeman
  • The remnant was crowded into a single small, unseaworthy brigantine under the command of Francisco Pizarro.

    South American Fights and Fighters Cyrus Townsend Brady
British Dictionary definitions for unseaworthy


not in a fit condition or ready for a sea voyage


in a fit condition or ready for a sea voyage
Derived Forms
seaworthiness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for unseaworthy



1807, "in fit condition to encounter heavy weather at sea," from sea + worthy. Related: Seaworthiness. Old English had særof "hardy at sea."

Online Etymology Dictionary, © 2010 Douglas Harper
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