10
horizontal(adjective, smooth, low, level, down)
9
bent(adjective, likely, inclined, liable)
8
level(adjective, smooth, low, down, lying)
8
minded(adjective, ready, subject, game, willing)
7
exposed(adjective, open, weak, easy, ready)
6
accumbent(adjective, horizontality)
6
couchant
6
lying(adjective, horizontal, horizontality)
6
reclining(adjective, smooth, low, level, down)
5
addictive(adjective, bad, cool, awesome)
5
eager(adjective, keen, happy, agreeable, enthusiastic)
5
face down(expression, adjective, down, lying, horizontal)
5
fain(adjective, adverb, ready, subject, game)
5
lying down(expression, adjective, lying, horizontal, sprawling)
5
sensitive(adjective, open, easy, ready, inferior)
4
addicted(adjective, apt, likely, inclined, habituated)
4
constitutionally(adjective, bad, cool, awesome)
4
flawed(adjective, bad, cool, awesome)
4
most likely
4
resupine(adjective, down, lying, horizontal)
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APASmart Define. (2016). prone thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/prone/thesaurus/synonyms
ChicagoSmart Define. 2016. "prone thesaurus" https://smartdefine.org/prone/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, prone thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/prone/thesaurus/synonyms>.
MLASmart Define. "prone thesaurus" 28 March 2016. Web. 21 September 2026. <https://smartdefine.org/prone/thesaurus/synonyms>