[flak-sid, flas-id]


soft and limp; not firm; flabby: flaccid biceps.
lacking force; weak: flaccid prose.

Origin of flaccid

1610–20; < Latin flaccidus flabby, equivalent to flacc(ēre) to grow weak, languish + -idus -id4
Related formsflac·cid·i·ty, flac·cid·ness, nounflac·cid·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for flaccid

Contemporary Examples of flaccid

Historical Examples of flaccid

  • He lifted his head and sniffed the flaccid air, which was laden with a heavy odour.

    Alice Adams

    Booth Tarkington

  • That the Intermediatist is likely to be a flaccid compromiser.

  • He felt weak and shaky but resentment energized his flaccid muscles.

    The Stars, My Brothers

    Edmond Hamilton

  • His flaccid mind had never questioned the truth of its dogmas.

    The Rough Road

    William John Locke

  • But how could something happen in a world of flat gold sand and flaccid sea?


    Jack Egan

British Dictionary definitions for flaccid



lacking firmness; soft and limp; flabby
Derived Formsflaccidity or flaccidness, nounflaccidly, adverb

Word Origin for flaccid

C17: from Latin flaccidus, from flaccus
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 flaccid

1610s, from French flaccide or directly from Latin flaccidus "flabby," from flaccus "flabby, flap-eared," of uncertain origin (OED suggests it's imitative). Related: Flaccidly; flaccidity.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for flaccid


[flăssĭd, flăkĭd]


Lacking firmness, resilience, or muscle tone.
Related formsflac•cidi•ty (-sĭdĭ-tē) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.