22
careless(adjective, soft, cold, indifferent, wild)
21
unmindful(adjective, soft, careless, cold, indifferent)
19
heedless(adjective, careless, cold, indifferent, wild)
18
inattentive(adjective, careless, cold, indifferent, wild)
17
indifferent(adjective, soft, slow, careless, casual)
15
neglectful(adjective, soft, careless, cold, indifferent)
15
negligent(adjective, soft, careless, cold, indifferent)
14
inadvertent(adjective, careless, cold, indifferent, foolish)
13
unconcerned(adjective, careless, indifferent, detached, casual)
12
notwithstanding(adjective, adverb, nevertheless, anyway, everything)
12
remiss(adjective, soft, careless, cold, indifferent)
12
thoughtless(adjective, slow, careless, cold, indifferent)
11
incurious(adjective, careless, cold, forget, uncaring)
11
nevertheless(adverb, however, anyway, everything, nonetheless)
11
inconsiderate(adjective, careless, cold, indifferent, wild)
11
unheeding(verb, adjective, careless, cold, indifferent)
10
anyway(adverb, everything)
10
forgetful(adjective, soft, careless, cold, casual)
10
in any case(expression, idiom, adverb, counter, anyway)
10
mindless(adjective, careless, indifferent, wild, stupid)
<1234510>
11 years ago|13k views|share |citing 
APASmart Define. (2015). regardless thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/regardless/thesaurus/synonyms
ChicagoSmart Define. 2015. "regardless thesaurus" https://smartdefine.org/regardless/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, regardless thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/regardless/thesaurus/synonyms>.
MLASmart Define. "regardless thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/regardless/thesaurus/synonyms>