147 entries under dull topic. ×
| dopey(adjective, slow, heavy, sluggish) | |
| empty(adjective, quiet, flat, heavy) | |
| flagging(slow, careless, idle, sluggish) | |
| insensible(adjective, quiet, flat, heavy) | |
| latent(sluggish, lazy, passive, inert) | |
| lumpish(adjective, slow, heavy, sluggish) | |
| sedentary(sluggish, lazy, motionless, unmoving) | |
| static(still, sluggish, lifeless, lazy) | |
| absent(adjective, careless, vague, lifeless) | |
| abstracted(noun, adjective, careless, vague) | |
| accustomed(adjective, quiet, flat, slow) | |
| asleep on the job(expression, adjective, idiom, careless) | |
| belated(late, behind, delayed, overdue) | |
| delayed(adjective, easy, low, relaxed) | |
| depressed(adjective, quiet, flat, slow) | |
| detained(late, behind, delayed, overdue) | |
| disengaged(free, sluggish, lazy, motionless) | |
| dragging(adjective, weak, slow, heavy) | |
| draggy(adjective, quiet, flat, low) | |
| drippy(adjective, slow, heavy, sluggish) |
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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> |