56 entries under smooth topic. ×

1
on one plane(expression, adjective, idiom, calm)
1
plain(adjective, calm, quiet, soft)
1
planed(adjective, calm, flat, plain)
1
polished(adjective, calm, quiet, soft)
1
precise(adjective, calm, flat, plain)
1
proportionate(adjective, calm, flat, plain)
1
rolled(adjective, calm, flat, plain)
1
same(adjective, calm, direct, right)
1
square(adjective, direct, right, flat)
1
trim(adjective, calm, flat, plain)
1
trimmed(adjective, calm, flat, plain)
1
true(adjective, direct, right, flat)
1
undeviating(adjective, quiet, direct, right)
1
unvarying(adjective, quiet, right, soft)
0
dead flat(expression, adjective, flat, even)
0
flat as a pancake(expression, adjective, idiom, flat)
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APASmart Define. (2013). planate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/planate/thesaurus/synonyms
ChicagoSmart Define. 2013. "planate thesaurus" https://smartdefine.org/planate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2013, planate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/planate/thesaurus/synonyms>.
MLASmart Define. "planate thesaurus" 28 June 2013. Web. 25 September 2026. <https://smartdefine.org/planate/thesaurus/synonyms>