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[dis-pruh-pawr-shuh-nit, -pohr-] /ˌdɪs prəˈpɔr ʃə nɪt, -ˈpoʊr-/
not proportionate; out of proportion, as in size or number.
Origin of disproportionate
First recorded in 1544-55; dis-1 + proportionate
Related forms
disproportionately, adverb
disproportionateness, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for disproportionate
Contemporary Examples
Historical Examples
  • The brain in Ants as in Man has undergone a disproportionate development.

    The Industries of Animals Frdric Houssay
  • Surely the gods, by miracle, must have checked so disproportionate a sacrifice!

    The Dragon Painter

    Mary McNeil Fenollosa
  • This burthen did not seem at all disproportionate to their strength.

    A Hundred Anecdotes of Animals Percy J. Billinghurst
  • Satisfactory; yet surely she greeted it with disproportionate joy.

    A Room With A View E. M. Forster
  • John and Christine were paying all the bill—at least a disproportionate amount.

    Double Harness Anthony Hope
British Dictionary definitions for disproportionate


adjective (ˌdɪsprəˈpɔːʃənɪt)
out of proportion; unequal
verb (ˌdɪsprəˈpɔːʃəˌneɪt)
(chem) to undergo or cause to undergo disproportionation
Derived Forms
disproportionately, adverb
disproportionateness, 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
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Word Origin and History for disproportionate

1550s, from dis- "not" + proportionate. Improportionate in same sense is from late 14c. Related: Disproportionately.

Online Etymology Dictionary, © 2010 Douglas Harper
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