493 entries under adjective topic. ×

4
tetragonal(four, four-sided, right-angled)
4
unimaginative(dull, simple, plain, informal)
3
angular
3
banal(dull, simple, flat, clean)
3
commonplace(dull, simple, moderate, plain)
3
filling(enthusiastic, vigorous, sincere, wholehearted)
3
formal
3
forthright(open, simple, honest, fair)
3
full(enthusiastic, vigorous, sincere, wholehearted)
3
hackneyed(dull, simple, moderate, clean)
3
ingenuous(open, simple, honest, straightforward)
3
innocent(good, simple, right, honest)
3
kosher(good, open, correct, right)
3
narrow-minded
3
orthogonal(regular, patterned, symmetrical, angled)
3
outspoken(open, honest, plain, true)
3
plane(noun, direct, smooth, right)
3
quits
3
rightful(sound, correct, right, reasonable)
3
stale(simple, clean, plain, stupid)
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APASmart Define. (2016). square thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/square/thesaurus/synonyms
ChicagoSmart Define. 2016. "square thesaurus" https://smartdefine.org/square/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, square thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/square/thesaurus/synonyms>.
MLASmart Define. "square thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/square/thesaurus/synonyms>