willful (adj.)

• advised
• aimed
• arbitrary
• autonomous
• balking
• balky
• bigoted
• bullheaded
• calculated
• case-hardened
• conscious
• considered
• contumacious
• decided
• deliberate
• designed
• determined
• discretional
• discretionary
• disobedient
• dogged
• dogmatic
• elective
• envisioned
• factious
• fanatic
• free
• froward
• gratuitous
• hardheaded
• headstrong
• heady
• independent
• insubordinate
• intended
• intentional
• intolerant
• intractable
• irresponsible
• knowing
• lawless
• licentious
• meant
• meditated
• mulish
• mutinous
• naughty
• nonconforming
• nonmandatory
• obstinate
• opinionated
• optional
• overzealous
• persevering
• pertinacious
• perverse
• pigheaded
• planned
• projected
• purposeful
• purposive
• rampant
• recusant
• resolved
• restive
• self-acting
• self-willed
• set
• spontaneous
• stiff-necked
• strong-willed
• stubborn
• studied
• sulky
• sullen
• teleological
• tenacious
• unaccountable
• unasked
• unbridled
• uncalled-for
• unchecked
• uncoerced
• uncontrolled
• uncooperative
• uncurbed
• undisciplined
• undutiful
• unforced
• ungoverned
• uninfluenced
• uninvited
• unprompted
• unregenerate
• unrequested
• unrestrained
• unsolicited
• unsought
• violative
• voluntary
• volunteer
• wayward
• wildcat
• willing
• witting
• wrongheaded