10
asleep(adjective, unconscious, gullible)
10
off-guard(adjective, adverb, unprepared)
9
unprepared(adjective, ready, unqualified, inattentive, negligent)
7
dreamy(adjective, inactivity, inattentive, inattention)
7
off guard(expression, adjective, idiom, adverb)
7
unaware(unqualified, vulnerable, gullible, unsuspecting, unready)
7
unsuspecting(unqualified, inattentive, unprepared, gullible, unready)
6
absent(adjective, inattentive, inattention)
6
dozy(adjective, inactivity)
6
drowsy(adjective, inactivity, sleepy)
6
nodding
5
abstracted(casual, inattention, happy-go-lucky, slapdash)
5
dozing(verb, adjective, quiet, tired, lethargic)
5
drowsing
5
oblivious(adjective, careless, casual, thoughtless, inattentive)
5
off his guard(expression, adjective, idiom)
5
preoccupied(adjective, inattentive, inattention)
5
resting(verb, adjective, quiet, unconscious, relaxing)
5
sleeping(adjective, quiet, unconscious, relaxing, asleep)
5
slumbering(adjective, unconscious, asleep, dormant, comatose)
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APASmart Define. (2015). napping thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/napping/thesaurus/synonyms
ChicagoSmart Define. 2015. "napping thesaurus" https://smartdefine.org/napping/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, napping thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/napping/thesaurus/synonyms>.
MLASmart Define. "napping thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/napping/thesaurus/synonyms>