adverb without previous thought or preparation.
— synonyms: offhand, offhandedly
adverb in a casually inconsiderate manner.
— synonyms: offhand, offhandedly
adjective with little or no preparation or forethought.
— synonyms: ad-lib, extemporaneous, extemporary, extempore, impromptu, offhand, off-the-cuff, unrehearsed
adjective casually thoughtless or inconsiderate.
— synonyms: offhand