9 entries under smooth topic. ×

17
decumbent(adjective, low, level, down)
15
prone(adjective, low, level, down)
13
supine(adjective, low, level, down)
13
flat(adjective, level, down, lying)
13
horizontal(adjective, flat, low, level)
13
prostrate(adjective, flat, low, level)
13
reclining(adjective, low, level, down)
11
procumbent(adjective, flat, low, level)
3
level(adjective, low, down, lying)
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APASmart Define. (2015). recumbent thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/recumbent/thesaurus/synonyms
ChicagoSmart Define. 2015. "recumbent thesaurus" https://smartdefine.org/recumbent/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, recumbent thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/recumbent/thesaurus/synonyms>.
MLASmart Define. "recumbent thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/recumbent/thesaurus/synonyms>