non-volitional;  involuntary;  spontaneous;  unintentional
 (coming to a) mutual understanding;  understanding each other
 expressing one's feelings;  communicating one's intention;  declaration of intent
 mutual understanding;  agreement of wills
 weak-willed;  lacking a purpose;  lacking will power to be patient, purposeful, or resolute
 strong-willed;  volitional
 the general will;  volonte generale
 strong determination;  strong-willed;  having strong will power;  firmness of purpose
 the will to power (philosophical concept of Nietzsche)