| stubborn(adjective, characteristic, quality, stubbornness, temperament) |
| headstrong(adjective, tough, firm, determined, resolute) |
| intractable(adjective, tough, firm, difficult, determined) |
| refractory(adjective, tough, firm, difficult, wild) |
| obstinate(adjective, determined, resolute, impulsive, stubborn) |
| contumacious(adjective, tough, firm, determined, obstinate) |
| perverse(adjective, mean, tough, firm, difficult) |
| willful(adjective, tough, firm, determined, awkward) |
| contrary(adjective, difficult, wild, determined, awkward) |
| pigheaded(adjective, tough, firm, difficult, determined) |
| wilful(adjective, determined, resolute, uncompromising, unshakeable) |
| froward(adjective, deliberate, determined, impulsive, stubborn) |
| mulish(adjective, tough, firm, difficult, determined) |
| recalcitrant(adjective, tough, firm, difficult, wild) |
| unruly(adjective, tough, difficult, wild, determined) |
| unyielding(adjective, tough, firm, determined, resolute) |
| adamant(adjective, tough, firm, determined, resolute) |
| balky(tough, firm, unreasonable, grim, inflexible) |
| business-minded |
| disobedient |