- Definitions|1
- Thesaurus|314
- Abbreviations|0
| uncompliant | |
| unconforming | |
| unfaithful | |
| uninformed(adjective, unaware) | |
| unknowing(adjective, unaware) | |
| unloyal | |
| unmarking | |
| unnoting | |
| unreasoning(adjective, dull, careless, indifferent, foolish) | |
| unreflective(careless, stupid, casual, unthinking, inattention) | |
| unremarking | |
| untrue | |
| unvigilant | |
| vague(adjective, careless, indifferent, apathetic, distracted) | |
| withdrawn(careless, remote, distracted, heedless, scatterbrained) | |
| woolgathering(adjective, careless, remote, vague, distracted) | |
| asleep at the switch(expression, idiom, rash, oblivious, neglectful) | |
| bird-witted | |
| bovine(careless, stupid, unthinking, obtuse, unperceptive) | |
| casual(happy-go-lucky, slapdash) |
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| APA | Smart Define. (2015). unobservant thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unobservant/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unobservant thesaurus" https://smartdefine.org/unobservant/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, unobservant thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unobservant/thesaurus/synonyms>. |
| MLA | Smart Define. "unobservant thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unobservant/thesaurus/synonyms> |