[ dih-mon-struh-buh l, dem-uh n- ]
/ dɪˈmɒn strə bəl, ˈdɛm ən- /


capable of being demonstrated or proved.
clearly evident; obvious: a demonstrable lack of concern for the general welfare.

Origin of demonstrable

1350–1400; Middle English < Old French < Late Latin dēmonstrābilis, equivalent to Latin dēmonstrā(re) (see demonstrate) + -bilis -ble
Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for demonstrable

British Dictionary definitions for demonstrable


/ (ˈdɛmənstrəbəl, dɪˈmɒn-) /


able to be demonstrated or proved
Derived Formsdemonstrability or demonstrableness, noundemonstrably (ˈdɛmənstrəblɪ, dɪˈmɒn-), adverb
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 demonstrable



c.1400, from Latin demonstrabilis, from demonstrare (see demonstration). Related: Demonstrably.

Online Etymology Dictionary, © 2010 Douglas Harper