170 entries under even topic. ×

1
irreversible(adjective, fixed, rigid, inflexible)
1
leveled(adjective, calm, smooth, flat, plain)
1
like(adjective, calm, smooth, flat, plain)
1
lined up(expression, adjective, calm, smooth, flat)
1
lustrous(adjective, quiet, soft, gentle, flat)
1
matched(adjective, calm, smooth, flat, plain)
1
matching(adjective, calm, direct, smooth, right)
1
mirrorlike(adjective, quiet, soft, gentle, flat)
1
nailed(adjective, strong, secure, firm, solid)
1
of same height(expression, adjective, idiom, calm, smooth)
1
on a line(expression, adjective, idiom, calm, smooth)
1
on a par(expression, adjective, idiom, calm, smooth)
1
on one plane(expression, adjective, idiom, calm, smooth)
1
ossified(adjective, dull, idle, sluggish)
1
parallel(adjective, calm, direct, smooth, right)
1
plain(adjective, calm, quiet, smooth, soft)
1
planed(adjective, calm, smooth, flat, plain)
1
plumb(adjective, direct, smooth, right, flat)
1
polished(adjective, calm, quiet, smooth, soft)
1
precise(adjective, calm, smooth, flat, plain)
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APASmart Define. (2015). stable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/stable/thesaurus/synonyms
ChicagoSmart Define. 2015. "stable thesaurus" https://smartdefine.org/stable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, stable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/stable/thesaurus/synonyms>.
MLASmart Define. "stable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/stable/thesaurus/synonyms>