• synonyms


See more synonyms for unbolted on Thesaurus.com
  1. not fastened or secured, as with a bolt or bolts.
Show More

Origin of unbolted1

First recorded in 1570–80; un-1 + bolt1 + -ed2


  1. not sifted, as grain.
Show More

Origin of unbolted2

First recorded in 1560–70; un-1 + bolt2 + -ed2


verb (used with object)
  1. to open (a door, window, etc.) by or as if by removing a bolt; unlock; unfasten.
  2. to release, as by the removal of threaded bolts: He unscrewed the nuts and unbolted the inspection cover.
Show More
verb (used without object)
  1. to become unbolted or unfastened.
Show More

Origin of unbolt

1425–75; late Middle English; see un-2 + bolt1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for unbolted

Historical Examples

  • I found it unbolted, and as everything was quiet inside, I entered.

    In a Steamer Chair and Other Stories

    Robert Barr

  • He unbolted the door, looked in the dark room beyond, and listened.

  • Our bread was made of unbolted corn, and was cold and clammy.

  • "I didn't know we had left any of them unbolted," Mrs. Brown said.

  • Shears turned the key of the door, unbolted it and softly pushed it open.

    The Blonde Lady

    Maurice Leblanc

British Dictionary definitions for unbolted


  1. (of grain, meal, or flour) not sifted
Show More


verb (tr)
  1. to unfasten a bolt of (a door)
  2. to undo (the nut) on a bolt
Show More
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