147 entries under dull topic. ×
| tame(late, behind, physical inertness) | |
| behindhand(adjective, soft, low, slow) | |
| do-nothing(adjective, sluggish, lazy, motionless) | |
| lagging(slow, careless, sluggish, dubious) | |
| languorous(adjective, slow, careless, indifferent) | |
| leaden(adjective, quiet, moderate, easy) | |
| phlegmatic(adjective, quiet, moderate, easy) | |
| spiritless(adjective, quiet, flat, heavy) | |
| hebetudinous(adjective, slow, heavy, sluggish) | |
| procrastinating(slow, careless, sluggish, late) | |
| quiescent(adjective, still, sluggish, lazy) | |
| sleepy(still, idle, sluggish, late) | |
| still(verb, adjective, calm, quiet) | |
| unconcerned(noun, adjective, careless, indifferent) | |
| abeyant(sluggish, lazy, passive, inert) | |
| asleep(still, sluggish, lifeless, lazy) | |
| behind(late, criminal, aberrant, antisocial) | |
| blah(adjective, quiet, flat, slow) | |
| comatose(adjective, slow, careless, indifferent) | |
| dallying(slow, careless, sluggish, late) |
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| APA | Smart Define. (2016). slack thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/slack/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "slack thesaurus" https://smartdefine.org/slack/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, slack thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/slack/thesaurus/synonyms>. |
| MLA | Smart Define. "slack thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/slack/thesaurus/synonyms> |