noun, plural pro·pen·si·ties.

a natural inclination or tendency: a propensity to drink too much.
Obsolete. favorable disposition or partiality.

Nearby words

  1. propend,
  2. propene,
  3. propense,
  4. propensely,
  5. propension,
  6. propenyl,
  7. propenyl group,
  8. propepsin,
  9. proper,
  10. proper adjective

Origin of propensity

First recorded in 1560–70; propense + -ity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for propensity

British Dictionary definitions for propensity


noun plural -ties

a natural tendency or disposition
obsolete partiality

Word Origin for propensity

C16: from Latin prōpensus inclined to, from prōpendēre to propend

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 propensity



1560s, "disposition to favor," with -ty + obsolete adjective propense "inclined, prone" (1520s), from Latin propensus, past participle of propendere "incline to, hang forward, hang down, weigh over," from pro- "forward" (see pro-) + pendere "hang" (see pendant).

Online Etymology Dictionary, © 2010 Douglas Harper