Self-tutoring about vocabulary: the tutor mentions recalcitrant.
recalcitrant (adj): defiant of authority or duty.
Hilariously, as a kid, I was called recalcitrant by someone who truly was. Perhaps it “takes one to know one:)”
I hear recalcitrant rarely nowadays.
Source:Mish, Frederick C. The Merriam-Webster Dictionary. Springfield: Merriam-Webster, 2004. Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.