adjective
1.
Synonyms: inattentive , inobservant, unnoticing, unobservant, unobserving, unperceiving, unwatchful
Antonyms: heedful, heeding
2.
Synonyms: careless 1, feckless, heedless, inadvertent, irreflective, thoughtless, uncaring, unrecking, unreflective, unthinking
Antonyms: heedful, heeding