renitent
adjective
re·ni·tent ˈre-nə-tənt 
ri-ˈnī-tᵊnt
1
: resisting physical pressure
2
: resisting constraint or compulsion : recalcitrant
Word History
Etymology
French or Latin; French rénitent, from Latin renitent-, renitens, present participle of reniti to resist, from re- + niti to strive — more at nisus
First Known Use
1604, in the meaning defined at sense 2