80 entries under even topic. ×

1
polished(adjective, calm, smooth, flat, plain)
1
precise(adjective, calm, smooth, flat, plain)
1
regular(adjective, calm, smooth, flat, plain)
1
rolled(adjective, calm, smooth, flat, plain)
1
same difference(expression, adjective, like, equal)
1
smooth(adjective, calm, flat, plain, level)
1
spitting image(expression, adjective, like, similar)
1
stable(adjective, calm, smooth, flat, plain)
1
steady(adjective, calm, smooth, flat, plain)
1
straight(adjective, calm, smooth, flat, plain)
1
trim(adjective, calm, smooth, flat, plain)
1
trimmed(adjective, calm, smooth, flat, plain)
1
unbroken(adjective, calm, smooth, flat, plain)
1
unfluctuating(adjective, calm, smooth, flat, plain)
1
uninterrupted(adjective, calm, smooth, flat, plain)
0
coterminous(adjective, level, equal, parallel)
0
dead flat(expression, adjective, smooth, flat)
0
flat as a pancake(expression, adjective, idiom, smooth, flat)
0
look alike(expression, like, similar, identical)
0
lookalike(like, similar, identical)
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APASmart Define. (2015). akin thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/akin/thesaurus/synonyms
ChicagoSmart Define. 2015. "akin thesaurus" https://smartdefine.org/akin/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, akin thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/akin/thesaurus/synonyms>.
MLASmart Define. "akin thesaurus" 23 December 2015. Web. 22 September 2026. <https://smartdefine.org/akin/thesaurus/synonyms>