148 entries under dull topic. ×
| prolonged(late, behind) | |
| protracted(late, behind) | |
| reduced(late, behind) | |
| stiff(late, behind) | |
| time-consuming(late, behind) | |
| unproductive(late, behind) | |
| unprogressive(late, behind) | |
| unpunctual(late, behind) |
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| APA | Smart Define. (2016). sleepy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, sleepy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>. |
| MLA | Smart Define. "sleepy thesaurus" 18 February 2016. Web. 29 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms> |