Found 2 items, similar to ad libitum.
English → English (WordNet) Definition: ad libitum ad libitum adv : without advance preparation; “he spoke ad lib” [syn: ad lib, spontaneously, impromptu]
English → English (gcide) Definition: Ad libitum Ad libitum \Ad lib"i*tum\ At one's pleasure; as one wishes. [1913 Webster]