Was heißt »widerborstig« auf Englisch?

Das Adjektiv widerborstig lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Deutsch/Englische Beispielübersetzungen

Er unterrichtet in einer Klasse mit auffällig vielen aufsässigen und widerborstigen Schülern.: He teaches a class with a conspicuous number of rebellious and unruly pupils.

aufsässig:: obstreperous; recalcitrant; recalcitrantly
beratungsresistent:: fixed in one's views
dickköpfig:: obstinate; stubborn
eigensinnig:: froward; hardheaded; headstrong; obstinate; opinionated; pig-headed; pigheaded; self-opinionated; stubborn; wayward; wilful; willful
halsstarrig:: obstinate; stubborn
hartnäckig:: adamantine; besetting; bulldog; confirmed; do-or-die; dogged; doggedly; insistent; intractable; obstinate; obstinately; persevering; persistent; pertinacious; pertinaciously; refractory; stiff-necked; strongheaded; stubborn; stubbornly; tenacious; tough
rechthaberisch:: bossily; bossy; dogmatic; dogmatically; know-all; self-opinionated
renitent:: recalcitrant; reluctant
starrköpfig:: obstinate; stubborn
starrsinnig:: obstinate; stubborn
störrisch:: balky
stur:: obstinate; stubborn
trotzig:: awkward; defiant; difficult
unbelehrbar:: inconvincible; stubborn; unconvincible; unteachable
unduldsam:: intolerant
uneinsichtig:: insensible
unnachgiebig:: inflexible; intransigent
widerspenstig:: recalcitrant

Many teachers complain that their pupils are becoming more unruly.
The mediator asked the unruly members of the audience to stop hectoring the speaker.
Maria is a rebellious girl.
The children were loud and unruly.
Tom is disobedient and rebellious.
His enjoyment of the game was marred by the unruly behaviour of some of the other spectators.
Mary is a rebellious girl.
Tom is a rebellious boy.