inoperative

adjectives

not working or taking effect
"an inoperative law"
inoperative
antonym
operative
is similar to
not functioning (temporarily or permanently)
"we can't work because the computer is down"
down
is similar to
out of use or operation because of a fault or breakdown
"a dead telephone line"; "the motor is dead"
dead
is similar to
no longer in force or use; inactive
"a defunct law"; "a defunct organization"
defunct