166 entries under dull topic. ×
| strenuous(adjective, tough, severe, rough) | |
| uninteresting(adjective, flat, warm, ordinary) | |
| wearisome(adjective, tough, severe, difficult) | |
| comatose(adjective, quiet, weak, easy) | |
| phlegmatic(adjective, quiet, weak, easy) | |
| slack(adjective, quiet, moderate, easy) | |
| somber(adjective, upset, quiet, severe) | |
| dead(adjective, flat, stupid, ordinary) | |
| dopey(adjective, quiet, weak, easy) | |
| dry(adjective, flat, warm, stupid) | |
| hebetudinous(adjective, slow, silly, stupid) | |
| ho-hum(adjective, boring, tired, tedious) | |
| indifferent(adjective, weak, easy, slow) | |
| languishing(adjective, bad, weak, easy) | |
| languorous(adjective, weak, easy, slow) | |
| monotonous(adjective, flat, ordinary, dry) | |
| obtuse(adjective, stupid, impassive, unresponsive) | |
| passive(adjective, quiet, moderate, easy) | |
| prosaic(adjective, flat, stupid, ordinary) | |
| staid(quiet, big, substantial, sober) |
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| APA | Smart Define. (2016). heavy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, heavy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>. |
| MLA | Smart Define. "heavy thesaurus" 25 January 2016. Web. 27 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms> |