non·​func·​tion·​al | \ ˌnän-ˈfəŋ(k)-shnəl How to pronounce nonfunctional (audio) , -shə-nᵊl\

Definition of nonfunctional

: not functional: such as
a : having no function : serving or performing no useful purpose Naive art … tends to be decorative and nonfunctional.— Robert Atkins
b : not performing or able to perform a regular function … the entire network is rendered nonfunctional if the central controller fails.— Charles Feltman

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Other Words from nonfunctional

nonfunctionally adverb

Examples of nonfunctional in a Sentence

Recent Examples on the Web

Junk fees and nonfunctional services are upsetting to me, too. Christopher Elliott, King Features Syndicate, The Mercury News, "Problem Solved: What’s with these transaction fees on my Sinemia tickets?," 23 June 2019 This mutation renders the gene partially nonfunctional. Douglas Main, National Geographic, "How the world’s deepest fish survives bone-crushing pressure," 15 Apr. 2019 Because of this, neutral models applied to the nonfunctional regions of the genome can be used to infer the demographic history of human populations (and a variety of other organisms) quite accurately, Cornejo said. Quanta Magazine, "Theorists Debate How ‘Neutral’ Evolution Really Is," 8 Nov. 2018 The Azure Active Directory Multifactor Authentication services went offline just before 05:00 UTC and remained nonfunctional until just before 19:00 UTC. Peter Bright, Ars Technica, "Microsoft explains one Azure authentication outage as another one happens," 27 Nov. 2018 And as of Friday July 27, even with the emergency cash infusion, the app is reportedly still nonfunctional for some users. Aja Romano, Vox, "MoviePass briefly stopped working — because it ran out of money," 27 July 2018 In modern strains, it has been reduced to an imperfect, nonfunctional copy called a pseudogene, thanks to a stop codon in the middle of its sequence. Kiona N. Smith, Ars Technica, "Ancient DNA reveals the secrets of a devastating European disease," 26 Sep. 2018 His stark black and white, two-dimensional forms are deliberately nonfunctional. Alexandra Bregman, WSJ, "When Chagall and Malevich Battled in Russia," 9 Aug. 2018 Similarly, male flowers have small, nonfunctional ovaries. The Editors Of Organic Life, Good Housekeeping, "How To Grow Your Own Kiwis In Your Backyard," 6 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nonfunctional.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of nonfunctional

1878, in the meaning defined above

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Last Updated

27 Jun 2019

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The first known use of nonfunctional was in 1878

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More Definitions for nonfunctional


non·​func·​tion·​al | \ -ˈfəŋ(k)-shnəl, -shən-ᵊl How to pronounce nonfunctional (audio) \

Medical Definition of nonfunctional

: nonfunctioning a nonfunctional muscle

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Comments on nonfunctional

What made you want to look up nonfunctional? Please tell us where you read or heard it (including the quote, if possible).


a period when something is suspended

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