Main entry: operative
Definition: being in force or having or exerting force
Usage: operative regulations; the major tendencies operative in the American political system
Antonyms: inoperative
Definition: not working or taking effect
Definition: the quality of being morally wrong in principle or practice
Definition: that which is below standard or expectations as of ethics or decency
Antonyms: bad
Definition: having undesirable or negative qualities
Antonyms: evil
Definition: morally bad or wrong
Antonyms: uneffective, ineffective, ineffectual
Definition: not producing an intended effect
Antonyms: inactive, nonoperational
Definition: (military) not involved in military operations
Main entry: operative, surgical
Definition: relating to or requiring or amenable to treatment by surgery especially as opposed to medicine
Usage: a surgical appendix; a surgical procedure; operative dentistry
Antonyms: medical
Definition: requiring or amenable to treatment by medicine especially as opposed to surgery
Main entry: functional, operative, running, working
Definition: (of e.g. a machine) performing or capable of performing
Usage: in running (or working) order; a functional set of brakes
Antonyms: nonfunctional, malfunctioning
Definition: not performing or able to perform its regular function
Main entry: operative
Definition: effective; producing a desired effect
Usage: the operative word
Antonyms: insignificant, unimportant
Definition: devoid of importance, meaning, or force
Antonyms: nonsignificant
Definition: attributable to chance
Antonyms: unimportant
Definition: not important