adjective
sassy
SASS-ee/ˈsæsi/
Boldly outspoken or self-assured.
The sassy older man strikes a pose with a mischievous grin.

Etymology
Sauce adds piquancy to food; figuratively, it added intensity to words or actions. Saucy developed from “resembling sauce” to “cheeky or impertinent,” the meaning carried into sassy.
In context
terriers are known for their sassy personalities and their penchant for picking fights with much larger dogs
More examples
- Her sassy reply makes everyone at the table laugh.
- He gives the coach a sassy answer and earns a warning.
- She brings a sassy confidence to every performance.
Forms
sassy · sassier · sassiest
sassiness noun — The quality of being outspoken or cheekily confident.
sassily adverb — In a boldly confident or cheeky manner.