happening without having been planned; depending on chances

without plan or organization

acting, given, without care

random, chaotic

contrary to rules, to what is normal and established

random, variable

without any particular reason

haphazard, chance

not working; not valuable

not working; not valuable

foolish

silly, meaningless

not intentional

not planned

not intentional

unintentional

having no use; not able to do what is intended; having no result

not working; not valuable