(a person) doing wrong, behaving badly

irresponsible, defaulting

slow in doing things

procrastinating

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

having or showing no interest or enthusiasm

easy-going, laid back

unaware, having no memory, (of something)

unaware, ignorant

paying no attention to a person or thing

indifferent, unconcerned

careless; negligent

careless, thoughtless

not thinking; selfish; inconsiderate

inconsiderate

unaware of something

not aware or attentive