2
unnoticing(adjective, careless, indifferent, apathetic, unconcerned)
2
unobserving(adjective, careless, indifferent, apathetic, distracted)
2
whatever
2
without considering(expression, idiom, adverb, counter, yet)
1
Non-Standard irregardless(adjective, adverb)
1
absent(adjective, careless, indifferent, apathetic, unconcerned)
1
absentminded(adjective, careless, indifferent, apathetic, unconcerned)
1
abstracted(adjective, careless, casual, unconcerned, sloppy)
1
airy
1
any old way(expression, idiom, slow, careless, indifferent)
1
any way(expression, soft, tolerant, slack, lenient)
1
any which way(expression, idiom, slow, careless, indifferent)
1
anywise
1
asleep at switch(expression, adjective, idiom, slow, careless)
1
asleep on job(expression, idiom, soft, careless, slack)
1
at all
1
at all costs(expression, idiom)
1
ataractic
1
bold(careless, thoughtless, rash, wary, heedless)
1
brainsick
11 years ago|13k views|share |citing 
APASmart Define. (2015). regardless thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/regardless/thesaurus/synonyms
ChicagoSmart Define. 2015. "regardless thesaurus" https://smartdefine.org/regardless/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, regardless thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/regardless/thesaurus/synonyms>.
MLASmart Define. "regardless thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/regardless/thesaurus/synonyms>