- Definitions|1
- Thesaurus|314
- Abbreviations|0
| confused(careless, stupid, unthinking, obtuse, unperceptive) | |
| day-dreaming | |
| detached | |
| doltish(careless, stupid, unthinking, obtuse, unperceptive) | |
| dull(careless, stupid, unthinking, obtuse, unperceptive) | |
| ecervele | |
| empty-headed(careless, stupid, unthinking, obtuse, unperceptive) | |
| fast and loose(expression, idiom, rash, oblivious, neglectful) | |
| feckless(rash, oblivious, neglectful) | |
| flighty(careless, stupid, unthinking, obtuse, unperceptive) | |
| foolhardy(rash, oblivious, neglectful) | |
| foolish(careless, stupid, unthinking, obtuse, unperceptive) | |
| giddy-brained | |
| hand over head(expression, idiom, inattention) | |
| happy-go-lucky(casual, slapdash) | |
| hare-brained | |
| harum-scarum | |
| hasty(casual, happy-go-lucky, slapdash) | |
| idle(distracted, scatterbrained, forgetful) | |
| ill-advised(careless, stupid, unthinking, obtuse, unperceptive) |
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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> |