147 entries under dull topic. ×
| out of work(expression, idiom, sluggish, lazy) | |
| overdue(late, criminal, behind, delayed) | |
| pokey(adjective, slow, heavy, sluggish) | |
| regular(adjective, quiet, flat, slow) | |
| sleepyheaded(adjective, slow, heavy, sluggish) | |
| sluggard(adjective, slow, heavy, still) | |
| slumberous(adjective, slow, heavy, still) | |
| snoozy(careless, idle, sluggish, lazy) | |
| somnolent(idle, sluggish, lazy, inactive) | |
| stable(sluggish, lazy, motionless, unmoving) | |
| stiff(adjective, moderate, low, slow) | |
| sullen(adjective, slow, heavy, sluggish) | |
| thoughtless(adjective, careless, indifferent, sluggish) | |
| tired(idle, sluggish, lazy, inactive) | |
| trifling(careless, idle, sluggish, inactive) | |
| unemployed(sluggish, lazy, motionless, unmoving) | |
| unenergetic(careless, idle, sluggish, dubious) | |
| uneventful(quiet, flat, late, behind) | |
| unindustrious(careless, idle, sluggish, dubious) | |
| unoccupied(sluggish, lazy, motionless, unmoving) |
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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> |