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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. 2018.
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Examples from the Web for unseaworthy
Historical Examples
  • Moreover, when there is time to use the boats, they are too often found to be unseaworthy.

  • The Geier entered Honolulu on Oct. 15 in an unseaworthy condition.

  • The “Coal-Coffin,” albeit an unseaworthy vessel, is a picturesque object.

    Shifting Winds R.M. Ballantyne
  • In these, overloaded, unseaworthy, they battled down the long chain of lakes.

  • He has never since been heard of, nor has any portion of his unseaworthy vessel been picked up.

    The Sea Jules Michelet
  • The Speedwell was found to be unseaworthy and was abandoned.

  • My dear sir, we are all—except you—wrecks here, all unseaworthy at least.

    The Great God Success John Graham (David Graham Phillips)
  • Their ships of war were few in number, unseaworthy, ill-found, ill-manned.

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

    Windjammers and Sea Tramps Walter Runciman
  • 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
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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