350 entries under adjective topic. ×

40
boring(dreary, tedious, colorless, drab)
33
tedious(dull, boring, monotonous, dreary)
30
tiresome(dull, simple, tough, excite)
29
dull(boring, tedious, dreary, lifeless)
25
monotonous(boring, dull, tedious, simple)
24
tiring(dull, tedious, stupid, difficult)
23
humdrum(dull, weak, excite, slow)
22
uninteresting(boring, tedious, dull, dreary)
19
fatiguing(burdensome, dull, difficult, boring)
19
irksome(dull, excite, difficult, pain)
18
laborious(dull, hard, tough, difficult)
17
unsurprising
17
wearying(dull, difficult, boring, tedious)
16
dreary(dull, simple, excite, gloomy)
13
dry(dull, flat, excite, boring)
13
insipid(dull, weak, simple, stupid)
13
toilsome(hard, tough, severe, difficult)
12
slow(dull, simple, stupid, boring)
12
strenuous(dull, tough, severe, difficult)
12
troublesome(tough, severe, rough, difficult)
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APASmart Define. (2015). wearisome thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/wearisome/thesaurus/synonyms
ChicagoSmart Define. 2015. "wearisome thesaurus" https://smartdefine.org/wearisome/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, wearisome thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/wearisome/thesaurus/synonyms>.
MLASmart Define. "wearisome thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/wearisome/thesaurus/synonyms>