unconstitutional

[uhn-kon-sti-too-shuh-nl, -tyoo-]
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Origin of unconstitutional

First recorded in 1735–45; un-1 + constitutional
Related formsun·con·sti·tu·tion·al·ism, nounun·con·sti·tu·tion·al·i·ty, nounun·con·sti·tu·tion·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for unconstitutional

unconstitutional

adjective
  1. at variance with or not permitted by a constitution
Derived Formsunconstitutionality, 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 unconstitutional
adj.

1734, from un- (1) "not" + constitutional.

Online Etymology Dictionary, © 2010 Douglas Harper