What is another word for Ad Libitum in english

The list of words which can be used for Ad Libitum while creating sentence in english language. ad-lib extemporaneous ad hoc, ad-lib, automatic, casual, expedient, extempore freely candidly, willingly, voluntarily, openly, advisedly impromptu spontaneous, offhand, ad-lib, fake, extemporaneous improvised impulsive impetuous, offhand, hasty, violent, abrupt, instinctive made-up offhand spontaneously unrehearsed off-the-cuff according to pleasure as one thinks best as one wishes at will improvise, extemporize, impromptu, improvised without restraint 
Usage of Ad Libitum in sentences
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