not fit; not adapted or suited; unsuitable: He was unfit for his office.
unqualified or incompetent.
not physically fit or in due condition.
Biology. pertaining to an organism or population that is not adapted to prevailing conditions or is not producing offspring in sufficient numbers to maintain its contribution to the gene pool of the next generation.

verb (used with object)

to render unfit or unsuitable; disqualify.

Origin of unfit

First recorded in 1535–45; un-1 + fit1
Related formsun·fit·ness, noun

Synonyms for unfit




made so as to follow closely the contours of a form or shape: fitted clothes; fitted sheets.

Origin of fitted

First recorded in 1730–40; fit1 + -ed2
Related formsfit·ted·ness, nounun·fit·ted, adjectivewell-fit·ted, adjective
Can be confusedfit fitted (see usage note at fit1)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unfitted

Historical Examples of unfitted

  • His fancy on the subject is a wild one, though not unfitted for the poet.

  • Children who live away from home are unfitted for domestic life.

    Mary Wollstonecraft

    Elizabeth Robins Pennell

  • For the law, diplomacy had unfitted him; for diplomacy he already knew too much.

  • I shall show that the sordidness of the struggle has not unfitted me to use the victory.

    The Plum Tree

    David Graham Phillips

  • The eccentricities of John Randolph unfitted him for leadership.

    Albert Gallatin

    John Austin Stevens

British Dictionary definitions for unfitted



unsuitableunused to and unfitted for any form of manual labour



designed for excellent fita fitted suit
(of a carpet) cut, sewn, or otherwise adapted to cover a floor completely
  1. (of furniture) built to fit a particular spacea fitted cupboard
  2. (of a room) equipped with fitted furniturea fitted kitchen
(of sheets) having ends that are elasticated and shaped to fit tightly over a mattress
having accessory parts



(postpositive often foll by for) unqualified, incapable, or incompetentunfit for military service
(postpositive often foll by for) unsuitable or inappropriatethe ground was unfit for football
in poor physical condition
Derived Formsunfitness, 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

Word Origin and History for unfitted



1540s, "not suitable" (in reference to things), from un- (1) "not" + past participle of fit (see fit (adj.)). Related: Unfitness. In reference to persons or human qualities, attested from 1550s. The verb meaning "to render unfit" is recorded from 1610s.

Online Etymology Dictionary, © 2010 Douglas Harper