supposititious

[suh-poz-i-tish-uh s]

adjective

fraudulently substituted or pretended; spurious; not genuine.

Origin of supposititious

1605–15; < Latin suppositīcius, equivalent to supposit(us) (past participle of suppōnere; see supposition) + -īcius -itious
Related formssup·pos·i·ti·tious·ly, adverbsup·pos·i·ti·tious·ness, noun
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British Dictionary definitions for supposititious

supposititious

adjective

substituted with intent to mislead or deceive
Derived Formssupposititiously, adverbsupposititiousness, 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