offhand

Definitions

Without previous thought or preparation; extemporaneously.

Ungraciously or offensively nonchalant or cool in manner.

Examples

I cannot give you the exact figures offhand, but I can look them up for you later.

He made an offhand remark about the project that ended up offending the entire team.

Synonyms

casual informal impromptu unceremonious curt brusque extemporaneous

Antonyms

formal deliberate planned studied prepared thoughtful polite