- Definitions|1
- Thesaurus|49
- Abbreviations|0
37 entries under dull topic. ×
| apathetic(adjective, slow, heavy, sluggish) | |
| blah(adjective, slow, heavy, sluggish) | |
| comatose(adjective, slow, heavy, sluggish) | |
| dopey(adjective, slow, heavy, sluggish) | |
| down(adjective, slow, heavy, sluggish) | |
| dragging(adjective, slow, heavy, sluggish) | |
| draggy(adjective, slow, heavy, sluggish) | |
| drippy(adjective, slow, heavy, sluggish) | |
| heavy(adjective, slow, sluggish, inactive) | |
| hebetudinous(adjective, slow, heavy, sluggish) | |
| inactive(adjective, slow, heavy, sluggish) | |
| indolent(adjective, slow, heavy, sluggish) | |
| inert(adjective, slow, heavy, sluggish) | |
| laid-back(adjective, slow, heavy, sluggish) | |
| languid(adjective, slow, heavy, sluggish) | |
| languorous(adjective, slow, heavy, sluggish) | |
| leaden(adjective, slow, heavy, sluggish) | |
| lethargic(adjective, slow, heavy, sluggish) | |
| lifeless(adjective, slow, heavy, sluggish) | |
| listless(adjective, slow, heavy, sluggish) |
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| APA | Smart Define. (2013). sleepyheaded thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sleepyheaded/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "sleepyheaded thesaurus" https://smartdefine.org/sleepyheaded/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2013, sleepyheaded thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sleepyheaded/thesaurus/synonyms>. |
| MLA | Smart Define. "sleepyheaded thesaurus" 17 June 2013. Web. 27 September 2026. <https://smartdefine.org/sleepyheaded/thesaurus/synonyms> |