adjective
Synonyms: careless 1, feckless, heedless, inadvertent, irreflective, thoughtless, unheeding, unrecking, unreflective, unthinking
Antonyms: careful
adjective
Synonyms: careless 1, feckless, heedless, inadvertent, irreflective, thoughtless, unheeding, unrecking, unreflective, unthinking
Antonyms: careful
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003