87 entries under plain topic. ×

3
ho-hum(adjective, dull, simple, flat, clean)
3
irksome(adjective, dull, simple, clean)
3
pedestrian(adjective, dull, simple, excite, clean)
3
prose(adjective, simple, flat, clean)
3
simple(adjective, ordinary, straightforward, matter-of-fact)
3
stale(adjective, dull, hard, weak, simple)
3
tacky(adjective, dirty, shabby, soiled)
3
unfashionable(adjective, shabby, dingy, unfashionable)
2
banal(adjective, dull, hard, weak, simple)
2
grotesque(adjective, unpleasant, common, usual)
2
hideous(adjective, unpleasant, common, usual)
2
homely(adjective, dull, unpleasant, common)
2
nothing(adjective, dull, simple, flat, clean)
2
repulsive(adjective, unpleasant, common, usual)
2
stodgy(adjective, dull, excite, stupid)
2
ugly(adjective, unpleasant, common, usual)
2
unattractive(adjective, dull, unpleasant, common)
2
unimaginative(adjective, dull, simple, flat, excite)
1
zero(adjective, dull, simple, flat, clean)
1
actual(adjective, simple, flat, clean)
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APASmart Define. (2016). drab thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/drab/thesaurus/synonyms
ChicagoSmart Define. 2016. "drab thesaurus" https://smartdefine.org/drab/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, drab thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/drab/thesaurus/synonyms>.
MLASmart Define. "drab thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/drab/thesaurus/synonyms>