Synonyms|648Antonyms|154|Broader|16Narrower|18Related|740
2
preoccupied
2
unconscious
2
unperceptive
2
unwary
2
unwitting
1
absent
1
daydreaming
1
disobedient(adjective, defiant, mischievous)
1
disregardful
1
distracted
1
dreaming
1
forgetful
1
haphazard
1
hasty
1
imprudent
1
inconsiderate
1
indiscreet
1
inobservant
1
insensible
1
irresponsible
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APASmart Define. (2016). observant thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/observant/thesaurus/antonyms
ChicagoSmart Define. 2016. "observant thesaurus" https://smartdefine.org/observant/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, observant thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/observant/thesaurus/antonyms>.
MLASmart Define. "observant thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/observant/thesaurus/antonyms>