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See more synonyms for acclivity on Thesaurus.com
noun, plural ac·cliv·i·ties.
  1. an upward slope, as of ground; an ascent (opposed to declivity).
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Origin of acclivity

1605–15; < Latin acclīvitās, equivalent to acclīv(is) steep (ac- ac- + -clīvis, adj. derivative of clīvus slope) + -itās -ity
Related formsac·cliv·i·tous, ac·cli·vous [uh-klahy-vuh s] /əˈklaɪ vəs/, adjectiveun·ac·cliv·i·tous, adjectiveun·ac·cliv·i·tous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Examples from the Web for acclivity

Historical Examples

  • The acclivity of these hills is such, that every tree appears full to the eye.

    A Tour in Ireland

    Arthur Young

  • There, upon an acclivity, a tin plate was found on the ground.

  • Against the face of the acclivity, there was not much danger of their being seen.

    The Boy Slaves

    Mayne Reid

  • They have been so, but now, climbing the acclivity, they have quieted their horses to a walk.

    The Death Shot

    Mayne Reid

  • Let the ascent to it be not by steps 16 but by an acclivity of raised earth.

British Dictionary definitions for acclivity


noun plural -ties
  1. an upward slope, esp of the groundCompare declivity
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Derived Formsacclivitous or acclivous (əˈklaɪvəs), adjective

Word Origin

C17: from Latin acclīvitās, from acclīvis sloping up, steep
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 acclivity


1610s, from Latin acclivitatem (nominative acclivitas) "an ascending direction, an upward steepness," from acclivis "mounting upwards, ascending," from ad- "up" (see ad-) + clivus "hill, a slope," from PIE *klei-wo-, suffixed form of *klei- "to lean" (see lean (v.)).

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Online Etymology Dictionary, © 2010 Douglas Harper