112 entries under tedious topic. ×

17
dull(adjective, dull, beat, light, weak)
12
boring(adjective, dull, weak, simple, flat)
12
prosaic(adjective, dull, weak, simple, flat)
11
lifeless(adjective, dull, weak, simple, soft)
11
toneless(adjective, dull, boring, pale)
10
flat(adjective, dull, simple, soft, obscure)
10
lackluster(adjective, dull, weak, simple, excite)
9
drab(adjective, dull, weak, simple, soft)
9
uninteresting(adjective, dull, weak, flat, common)
8
bland(adjective, dull, strong, weak, boring)
8
characterless(adjective, dull, mean, rough, poor)
8
dreary(adjective, dull, flat, gloomy, dirty)
8
insipid(adjective, dull, light, weak, soft)
8
monotonous(adjective, dull, weak, simple, flat)
8
pedestrian(adjective, dull, mean, simple, rough)
8
prosy(adjective, dull, mean, weak, simple)
8
vapid(adjective, dull, weak, simple, flat)
7
arid(adjective, dull, flat, excite, stupid)
7
dry(adjective, dull, simple, flat, excite)
6
jejune(adjective, dull, weak, flat, ordinary)
10 years ago|13k views|share |citing 
APASmart Define. (2016). colorless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/colorless/thesaurus/synonyms
ChicagoSmart Define. 2016. "colorless thesaurus" https://smartdefine.org/colorless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, colorless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/colorless/thesaurus/synonyms>.
MLASmart Define. "colorless thesaurus" 23 March 2016. Web. 24 September 2026. <https://smartdefine.org/colorless/thesaurus/synonyms>