Synonyms|160Antonyms|1|Broader|6Narrower|0Related|37
1
quiet
1
sickly(adjective, dull, weak, easy, slow)
1
slacker
1
slackers
1
sleeping
1
sleeping beauty
1
sleepwalker
1
slothful(adjective, dull, stupid, weary, apathetic)
1
slow-foot
1
slow goer
1
slowbelly
1
slowpoke
1
slugabed
1
sluggish(adjective, dull, quiet, weak, easy)
1
slumberous(adjective, dull, quiet, slow, heavy)
1
slumbersome
1
snail
1
somniloquist
1
somnolent(adjective, dull, quiet, slow, relaxed)
1
soporific
For more, visit Sleepyhead on Power Thesaurus
11 years ago|4.1k views|share |citing 
APASmart Define. (2015). sleepyhead thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sleepyhead/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleepyhead thesaurus" https://smartdefine.org/sleepyhead/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sleepyhead thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sleepyhead/thesaurus/synonyms>.
MLASmart Define. "sleepyhead thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/sleepyhead/thesaurus/synonyms>