the.com/insubordinate
Defying the chain of command, one gloriously ill-advised eye-roll at a time.
means Refusing to obey orders or respect the authority of someone above you.
from From Latin sub- (under) plus ordinare (to order), with the negating in- bolted on — literally not-arranged-beneath, a sentence diagrammed as rebellion.
Military weightA formal chargeable offense under most armed-forces codes.
Sister wordSubordinate means the obedient, well-behaved opposite.
Workplace flagHR's favorite euphemism for talking back.