38 entries under dull topic. ×

20
protracted(verb, adjective, strong, great)
10
long-drawn-out(adjective, great, excite, low)
9
lingering(adjective, great, continue, low)
6
tedious(adjective, slow, boring, late)
6
time-consuming(adjective, moderate, low, stiff)
4
delayed(verb, adjective, low, slow)
1
backward(adjective, moderate, low, stiff)
1
behind(adjective, moderate, low, stiff)
1
belated(adjective, moderate, low, stiff)
1
conservative(adjective, moderate, low, stiff)
1
dead(adjective, late, behind)
1
detained(adjective, moderate, low, stiff)
1
dilatory(slow, boring, tedious, late)
1
down(late, behind)
1
draggy(adjective, moderate, low, stiff)
1
gradual(adjective, moderate, low, stiff)
1
hindered(adjective, moderate, low, stiff)
1
impeded(adjective, moderate, low, stiff)
1
late(adjective, low, slow, boring)
1
low(adjective, moderate, stiff, late)
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APASmart Define. (2015). prolonged thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/prolonged/thesaurus/synonyms
ChicagoSmart Define. 2015. "prolonged thesaurus" https://smartdefine.org/prolonged/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, prolonged thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/prolonged/thesaurus/synonyms>.
MLASmart Define. "prolonged thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/prolonged/thesaurus/synonyms>