147 entries under dull topic. ×
| slow(verb, adjective, calm, quiet) | |
| lax(adjective, calm, clear, separate) | |
| sluggish(adjective, quiet, increase, flat) | |
| indolent(adjective, quiet, easy, slow) | |
| limp(adjective, clear, separate, weak) | |
| inactive(adjective, action, quiet, flat) | |
| remiss(noun, adjective, soft, slow) | |
| idle(verb, adjective, stop, quiet) | |
| careless(noun, adjective, soft, indifferent) | |
| inert(adjective, quiet, moving, flat) | |
| lazy(verb, adjective, easy, slow) | |
| listless(adjective, quiet, energy, easy) | |
| neglectful(noun, adjective, soft, slow) | |
| slothful(adjective, quiet, flat, slow) | |
| dilatory(adjective, quiet, moderate, easy) | |
| inattentive(noun, adjective, careless, indifferent) | |
| languid(adjective, quiet, easy, flat) | |
| lethargic(adjective, quiet, slow, careless) | |
| lingering(slow, late, lazy, remiss) | |
| moderate(verb, adjective, calm, quiet) |
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| APA | Smart Define. (2016). slack thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/slack/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "slack thesaurus" https://smartdefine.org/slack/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, slack thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/slack/thesaurus/synonyms>. |
| MLA | Smart Define. "slack thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/slack/thesaurus/synonyms> |