(of a person) not taking care; thoughtless

without sufficient attention

not taking care

slack, remiss

giving no thought or care to something; not having or not requiring intelligence; not having a purpose

oblivious, stupid; automatic

taking too little care; guilty of neglect

careless, indifferent

unaware, having no memory, (of something)

unaware, ignorant

careless; negligent

careless, thoughtless

not aware

ignorant

not anxious (about); not (emotionally) concerned (with)

carefree; apathetic

not showing gratitude

not appreciative

unaware of something

not aware or attentive