• synonyms


[in-vahy-uh-buh l]
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adjective Biology.
  1. (of an organism) incapable of sustaining its own life.
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Origin of inviable

First recorded in 1915–20; in-3 + viable
Related formsin·vi·a·bil·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for inviable


  1. not viable, esp financially; not able to survivean inviable company
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Derived Formsinviability or inviableness, nouninviably, adverb
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 inviable


1918, from in- (1) "not" + viable. Related: Inviability.

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Online Etymology Dictionary, © 2010 Douglas Harper

inviable in Medicine


  1. Unable to survive or develop normally.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.