56 entries under dull topic. ×

33
heavy(adjective, quiet, easy, severe)
28
stodgy(adjective, hard, difficult, complex)
26
sluggish(adjective, hard, difficult, complex)
25
heavy-handed(adjective, good, hard, difficult)
18
stale(adjective, hard, difficult, complex)
16
dull(adjective, quiet, severe, slow)
10
slow(adjective, boring, tedious, lazy)
8
dense(adjective, big, heavy, substantial)
6
loutish
5
bovine(adjective, big, heavy, awkward)
5
humdrum(adjective, informal, boring, tedious)
4
boorish
4
sleepy
4
soporific
4
uninteresting(adjective, heavy, boring, bland)
3
lethargic
3
apathetic
3
benumbed
3
cloddish
3
comatose
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APASmart Define. (2015). ponderous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/ponderous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ponderous thesaurus" https://smartdefine.org/ponderous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, ponderous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/ponderous/thesaurus/synonyms>.
MLASmart Define. "ponderous thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/ponderous/thesaurus/synonyms>