əksˌtɛmpɚˈeɪni.əs ɛksˌtɛm.pɜː(ɹ)ˈeɪn.i.əs ɛkˈstɛmpəɹi ɪmˈpɹɒmptju ɪmˈpɹɑmpt(j)u ˌɔfˈhænd ɒfˈhændɪd ɔfˈhændɪd ɑfˈhændɪd with little or no preparation or forethought his ad-lib comments showed poor judgment an extemporaneous piano recital an extemporary lecture an extempore skit an impromptu speech offhand excuses trying to sound offhanded and reassuring an off-the-cuff toast a few unrehearsed comments