unprompted

adj (of an answer or action) not said or done, etc as the result of a hint, suggestion, etc; spontaneous （指回答或行动）未经提示做出的, 自发的: an unprompted offer of help 主动的提出帮助.

unpleasantly, unpleasantness, unplug, unpopular, unpopularity, unpractised, unprecedented, unprecedentedly, unpredictable, unprejudiced, unpremeditated, unprepossessing, unpretentious, unprincipled, unprintable, unproductive, unprofessional, unprofessionally, unprofitable, unpromising, unpronounceable, unprovided, unprovoked, unpunished, unputdownable, unqualified, unquestionable, unquestionably, unquestioned, unquestioning, unquestioningly, unquiet, unquote, unravel, unread, unreadable, unreadiness, unreal, unrealistic, unreality,