1
uncompliant
1
unconforming
1
unfaithful
1
uninformed(adjective, unaware)
1
unknowing(adjective, unaware)
1
unloyal
1
unmarking
1
unnoting
1
unreasoning(adjective, dull, careless, indifferent, foolish)
1
unreflective(careless, stupid, casual, unthinking, inattention)
1
unremarking
1
untrue
1
unvigilant
1
vague(adjective, careless, indifferent, apathetic, distracted)
1
withdrawn(careless, remote, distracted, heedless, scatterbrained)
1
woolgathering(adjective, careless, remote, vague, distracted)
0
asleep at the switch(expression, idiom, rash, oblivious, neglectful)
0
bird-witted
0
bovine(careless, stupid, unthinking, obtuse, unperceptive)
0
casual(happy-go-lucky, slapdash)
11 years ago|3.1k views|share |citing 
APASmart Define. (2015). unobservant thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unobservant/thesaurus/synonyms
ChicagoSmart Define. 2015. "unobservant thesaurus" https://smartdefine.org/unobservant/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unobservant thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unobservant/thesaurus/synonyms>.
MLASmart Define. "unobservant thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unobservant/thesaurus/synonyms>