8 entries under smooth topic. ×

17
recumbent(adjective, flat, low, level)
11
prone(adjective, flat, low, level)
11
prostrate(adjective, flat, low, level)
10
flat(adjective, level, small, down)
9
reclining(adjective, flat, low, level)
7
supine(adjective, low, level, down)
6
horizontal(adjective, low, level, down)
1
level(low, lying, horizontal)
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APASmart Define. (2015). decumbent thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/decumbent/thesaurus/synonyms
ChicagoSmart Define. 2015. "decumbent thesaurus" https://smartdefine.org/decumbent/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, decumbent thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/decumbent/thesaurus/synonyms>.
MLASmart Define. "decumbent thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/decumbent/thesaurus/synonyms>