147 entries under dull topic. ×
| protracted(late, behind) | |
| reduced(late, behind) | |
| stuporous | |
| tedious(late, behind) | |
| unprogressive(late, behind) | |
| unsympathetic(adjective, quiet, flat, heavy) | |
| weary(idle, sluggish, inactive, lethargic) |
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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> |