389 entries under simple topic. ×

4
unceremonious(adjective, honest, modest, usual)
4
unconstrained(adjective, warm, loving, affectionate)
4
uninspired(adjective, dull, weak, flat)
3
banal(adjective, dull, weak, unpleasant)
3
boring(adjective, dull, weak, flat)
3
bourgeois(adjective, ordinary, familiar, natural)
3
bright(adjective, clear, clean, straightforward)
3
callow(adjective, natural, straightforward, innocent)
3
distinguishable(adjective, clear, exact, obvious)
3
dreary(adjective, dull, flat, harsh)
3
facile(adjective, clear, light, smooth)
3
inconspicuous(adjective, quiet, ordinary, modest)
3
inelaborate(adjective, reasonable, clean, honest)
3
inferior(adjective, dull, mean, weak)
3
laid-back(adjective, calm, quiet, open)
3
obscure(adjective, quiet, mean, soft)
3
paltry(adjective, clear, light, weak, smooth)
3
pure and simple(expression, adjective, idiom, clean)
3
quotidian(adjective, dull, pure, common)
3
soft(adjective, calm, dull, quiet, light)
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APASmart Define. (2016). plain thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/plain/thesaurus/synonyms
ChicagoSmart Define. 2016. "plain thesaurus" https://smartdefine.org/plain/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, plain thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/plain/thesaurus/synonyms>.
MLASmart Define. "plain thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/plain/thesaurus/synonyms>