strong-willed
adjective
[ ˌstrɒŋˈwɪld ]
• determined to do as one wants even if other people advise against it.
• "she's a very strong-willed little girl"
Similar:
determined,
iron-willed,
resolute,
stubborn,
stubborn as a mule,
mulish,
obstinate,
wilful,
headstrong,
strong-minded,
self-willed,
inflexible,
unbending,
unyielding,
intransigent,
intractable,
obdurate,
recalcitrant,
refractory,
forceful,
domineering,
pushy,
indurate,