arbitrary autonomous discretional discretionary elective free free will gratuitous independent nonmandatory offered optional proffered self-acting self-active self-determined self-determining spontaneous unacceptable unagreeable unasked unasked-for unbesought unbidden uncalled-for uncoerced uncompelled undesirable undesired unforced uninfluenced unpressured unprompted unrequested unrequired unsolicited unsought unwanted unwelcome unwished voluntary volunteer willful