ad libitum Synonyms

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