a. [ L., comp. of ultra, ultro, beyond, on the other side, properly cases of an old adjective, formed with a comparative suffix, which is akin to OL. uls beyond, L. olim formerly, hereafter, orig., at that time, ille that, OL. olle, ollus. Cf. Outrage. ]
Ulterior motive,
Ulterior object
Ulterior aim
n. Ulterior side or part. [ R. ] Coleridge. [ 1913 Webster ]
adv. More distantly or remotely. [ 1913 Webster ]