Synonyms|170Antonyms|112|Broader|5Narrower|0Related|284
5
sleepy
4
asleep
4
dozy
3
drowsy
2
dormant
2
dozing
2
heedless
2
inattentive
2
napping
2
neglectful
2
negligent
2
sleeping
2
slumberous
2
somnolent
2
thoughtless
2
unaware
1
careless
1
comatose
1
deep
1
dense
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APASmart Define. (2015). wakeful thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/wakeful/thesaurus/antonyms
ChicagoSmart Define. 2015. "wakeful thesaurus" https://smartdefine.org/wakeful/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, wakeful thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/wakeful/thesaurus/antonyms>.
MLASmart Define. "wakeful thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/wakeful/thesaurus/antonyms>