ad libitum Synonyms

impromptu spontaneously ad lib unplanned unscripted to one's heart's content of one's own accord at one's discretion play by ear without preparation without rehearsal as one wishes as one thinks best according to one's pleasure at own discretion at one's pleasure as one sees fit as one pleases of one's own free will act without preparation act spontaneously act according to the situation according to pleasure extemporaneously unprepared makeshift liberally improvise improvised extemporaneous freely extemporized extempore offhand spontaneous unstudied made-up dash off at will unrehearsed off-the-cuff play it by ear willingly voluntarily extemporary