the GNU version of the Collaborative International Dictionary of English
adj. Neither moral nor immoral; having no connection with morals; not within the sphere of morals or ethics; not ethical.
The Century Dictionary and Cyclopedia
Unconnected with morals; having no relation to ethics or morals; not involving ethical or moral considerations.
Word Usage
"Take a version of expressivism which says that a moral judgment that such and such an action is wrong predicates a nonmoral property of that action and at the same time expresses disapproval of that property."