Synonyms|643Antonyms|183|Broader|10Narrower|12Related|1.3k

43 entries under boring topic. ×

5
wearing(adjective, dull, hard, tough, difficult)
4
irksome(adjective, dull, difficulty, difficult, heavy)
3
annoying(adjective, dull, painful, tedious)
2
vexatious(adjective, dull, difficult, tender)
1
boresome(adjective, dull, tired, tedious)
1
drag(adjective, dull, tired, tedious)
1
dragging(adjective, dull, tired, tedious)
1
drudging(adjective, dull, tired, tedious)
1
dull(adjective, tedious, irritating, annoying)
1
enervative(adjective, dull, tired, tedious)
1
exasperating(adjective, dull, tired, tedious)
1
flat(adjective, dull, tedious, irritating)
1
ho-hum(adjective, dull, tired, tedious)
1
humdrum(adjective, dull, tedious, irritating)
1
jading(adjective, dull, tired, tedious)
1
monotonous(adjective, dull, tedious, irritating)
1
nowhere(adjective, dull, tedious, irritating)
1
tired(adjective, dull, tedious, irritating)
1
too much(expression, adjective, dull, tired)
1
uncool(adjective, dull, tired, tedious)
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ChicagoSmart Define. 2016. "arduous thesaurus" https://smartdefine.org/arduous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, arduous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/arduous/thesaurus/synonyms>.
MLASmart Define. "arduous thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/arduous/thesaurus/synonyms>