105 entries under sluggish topic. ×
| careless(dull, idle, inactive, lethargic) | |
| dallying(dull, idle, inactive, lethargic) | |
| disengaged(adjective, dull, idle, lazy) | |
| do-nothing(adjective, dull, idle, lazy) | |
| down(adjective, dull, low, still, idle) | |
| having spring fever(expression, adjective, idiom, dull, stupid) | |
| impassive(adjective, dull, slow, relaxed, still) | |
| in holding pattern(expression, adjective, idiom, dull, idle) | |
| inattentive(dull, idle, inactive, lethargic) | |
| inoperative(adjective, dull, idle, lazy) | |
| lagging(dull, idle, lifeless, inactive) | |
| laid-back(adjective, quiet, slow, relaxed, indifferent) | |
| latent(adjective, dull, quiet, flat, indifferent) | |
| lax(adjective, dull, idle, lazy) | |
| loafing(dull, idle, inactive, lethargic) | |
| low-key(adjective, dull, idle, lazy) | |
| moony(adjective, quiet, flat, slow, relaxed) | |
| mothballed(adjective, dull, idle, lazy) | |
| nebbish(adjective, dull, slow, relaxed, stupid) | |
| neglectful(dull, idle, inactive, lethargic) |
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| APA | Smart Define. (2016). sleepy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sleepy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sleepy thesaurus" https://smartdefine.org/sleepy/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, sleepy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sleepy/thesaurus/synonyms>. |
| MLA | Smart Define. "sleepy thesaurus" 18 February 2016. Web. 28 September 2026. <https://smartdefine.org/sleepy/thesaurus/synonyms> |