126 entries under adjective topic. ×

1
equable(calm, quiet, smooth, soft)
1
equivalent(calm, smooth, flat, plain)
1
exact(calm, smooth, flat, plain)
1
fluent(quiet, soft, gentle, flat)
1
fluid(quiet, soft, gentle, flat)
1
frictionless(quiet, soft, gentle, flat)
1
hairless(quiet, soft, gentle, flat)
1
identical(calm, smooth, flat, plain)
1
in line(expression, calm, smooth, flat)
1
insipid
1
invariable(quiet, smooth, right, soft)
1
leveled(calm, smooth, flat, plain)
1
like(calm, smooth, flat, plain)
1
lined up(expression, calm, smooth, flat)
1
lustrous(quiet, soft, gentle, flat)
1
matched(calm, smooth, flat, plain)
1
matted
1
mild(quiet, soft, gentle, flat)
1
mirrorlike(quiet, soft, gentle, flat)
1
of same height(expression, idiom, calm, smooth)
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APASmart Define. (2015). plane thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/plane/thesaurus/synonyms
ChicagoSmart Define. 2015. "plane thesaurus" https://smartdefine.org/plane/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, plane thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/plane/thesaurus/synonyms>.
MLASmart Define. "plane thesaurus" 24 October 2015. Web. 24 September 2026. <https://smartdefine.org/plane/thesaurus/synonyms>