non-committal

adjective

1. not committing oneself, or not involving committal, to a particular view, course, or the like: The senator gave us a noncommittal answer.

adjective

1. not involving or revealing commitment to any particular opinion or course of actiona noncommittal reply
2. rare having no outstanding quality, meaning, etc

adj.also noncommittal, 1829, “characterized by refusal to commit oneself,” from non- + committal (see commit).