If you referred to someone as "recalcitrant," which of the following more common words could you accurately use instead?

From Merriam-Webster:
re·​cal·​ci·​trant | \ ri-ˈkal-sə-trənt \
1: obstinately defiant of authority or restraint
2a: difficult to manage or operate
b: not responsive to treatment
c: RESISTANT
"this subject is recalcitrant both to observation and to experiment"
— G. G. Simpson

Asked by Tom Cohen · Last updated 5 years ago · 16.8K views