suppositious

[suhp-uh-zish-uh s]

adjective

formed from or growing out of supposition: suppositious evidence.

Origin of suppositious

First recorded in 1615–25; shortened form of supposititious
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for suppositious

suppositious

adjective

deduced from supposition; hypothetical
Derived Formssuppositiously, adverbsuppositiousness, 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