uppity

adjective Informal.

1. affecting an attitude of inflated self-esteem; haughty; snobbish.
2. rebelliously self-assertive; not inclined to be tractable or deferential.

adjective informal

1. not yielding easily to persuasion or control
2. another word for uppish

adj.1880, from up + -ity; originally used by blacks of other blacks felt to be too self-assertive (first recorded use is in “Uncle Remus”). The parallel British variant uppish (1670s) originally meant “lavish;” the sense of “conceited, arrogant” being first recorded 1734.