balking
balky
refractory
stubborn
uncontrollable
unmalleable
unmanageable
adamant
adamantine
beyond control
breachy
bullheaded
contumacious
cross
defiant
fractious
headstrong
immovable
immutable
incorrigible
indocile
indomitable
inductile
inelastic
inextensible
inextensile
inextensional
inflexible
insubordinate
insuppressible
intractile
intransigent
irrepressible
irresilient
mulish
noncooperating
noncooperative
nonelastic
nonstretchable
obstinate
obstreperous
out of hand
pertinacious
perverse
recalcitrant
resistant
resisting
restive
self-willed
shrewish
tough
disobedient
irreconcilable
obdurate
overbear
quarrelsome
resentful
ungovernable
unruly
vindictive
wayward
willful
retractable
tractable