All terms in this list:

arbitrary: random chance

coincidental: happening at the same time by accident

contrive: to cleverly plan

deliberation: slow,careful thought

fortuitous: happening by lucky accident

haphazard: chosen randomly

premeditated: planned or arranged in advance

prophetic: predicting the future

spontaneity: quality of following personal impulse rather than outside influences

unwittingly: unknowingly

asserted: declared

ferocity: fierceness

flout: to disobey

foolhardy: unwisely bold

headstrong: stubborn

incisive: clear and sharp

outspoken: boldly

undaunted: not discouraged

vehement: forceful or intense

vibrent: pulsing with energy