82 entries under negligent topic. ×

3
unwitting(adjective, careless, unconcerned, sloppy, ignorant)
3
venturesome(adjective, careless, wild, thoughtless, impulsive)
2
bored(adjective, dull, careless, indifferent, apathetic)
2
breakneck(adjective, violent, wild, fast, quick)
2
delinquent(adjective, slow, careless, indifferent, coarse)
2
incognizant(adjective, unconcerned, ignorant, unconscious)
2
indolent(adjective, careless, casual, lethargic, languid)
2
out to lunch(expression, adjective, idiom, careless, unconcerned)
2
slow(adjective, careless, lethargic, languid)
2
unobserving(adjective, careless, indifferent, apathetic, distracted)
1
behindhand(adjective, slow, careless, indifferent, coarse)
1
caught napping(expression, adjective, careless, bold, thoughtless)
1
deaf to(expression, adjective, unconcerned, ignorant, unconscious)
1
distraught(adjective, careless, indifferent, apathetic, distracted)
1
diverted(adjective, careless, indifferent, apathetic, distracted)
1
doped(adjective, unconcerned, ignorant, unconscious)
1
in a daze(expression, adjective, idiom, unconcerned, ignorant)
1
inconversant(adjective, unconcerned, ignorant, unconscious)
1
musing(noun, adjective, careless, indifferent, apathetic)
1
nescient(adjective, unconcerned, ignorant, unconscious)
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APASmart Define. (2016). heedless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/heedless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heedless thesaurus" https://smartdefine.org/heedless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, heedless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/heedless/thesaurus/synonyms>.
MLASmart Define. "heedless thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/heedless/thesaurus/synonyms>