61 entries under heedless topic. ×

2
unmindful(adjective, careless, indifferent, unconcerned, remote)
2
unobservant(adjective, careless, indifferent, apathetic, unconcerned)
2
unthinking(adjective, dull, careless, indifferent, apathetic)
2
unwitting(adjective, careless, unconcerned, sloppy, slack)
2
woolgathering(adjective, careless, remote, vague, sloppy)
1
absorbed(careless, remote, distracted, scatterbrained)
1
caught napping(expression, adjective, unconcerned, ignorant, naive)
1
deaf(adjective, unconcerned, ignorant, naive, unconscious)
1
deaf to(expression, adjective, unconcerned, ignorant, unconscious)
1
distrait(adjective, careless, indifferent, apathetic, remote)
1
doped(adjective, unconcerned, ignorant, unconscious)
1
dreaming(careless, remote, distracted, scatterbrained)
1
engrossed(careless, remote, distracted, scatterbrained)
1
faraway(adjective, careless, indifferent, apathetic, remote)
1
goofing off(expression, careless, remote, rash, distracted)
1
head in the clouds(expression, idiom, careless, remote, distracted)
1
ignorant(adjective, unconcerned, naive, unconscious)
1
in a daze(expression, adjective, idiom, unconcerned, ignorant)
1
incognizant(adjective, unconcerned, ignorant, unconscious)
1
inconscient(careless, remote, distracted, woolgathering)
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APASmart Define. (2013). out to lunch thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/out_to_lunch/thesaurus/synonyms
ChicagoSmart Define. 2013. "out to lunch thesaurus" https://smartdefine.org/out_to_lunch/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2013, out to lunch thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/out_to_lunch/thesaurus/synonyms>.
MLASmart Define. "out to lunch thesaurus" 17 May 2013. Web. 30 September 2026. <https://smartdefine.org/out_to_lunch/thesaurus/synonyms>