
Xem thêm: ad-lib, extemporaneous, extemporary, extempore, offhand, offhanded, off-the-cuff, unrehearsed, ad lib, ad libitum, spontaneously
n.
a witty impromptu must not sound premeditated
adj.
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
adv.
he spoke ad lib