unproductive

a. 无生产的,无出产的,不毛的

unpick, unplaced, unplanned, unplayable, unpleasant, unpleasantly, unpleasantness, unplug, unpopular, unpopularity, unpractised, unprecedented, unprecedentedly, unpredictable, unprejudiced, unpremeditated, unprepossessing, unpretentious, unprincipled, unprintable, unprofessional, unprofessionally, unprofitable, unpromising, unprompted, unpronounceable, unprovided, unprovoked, unpunished, unputdownable, unqualified, unquestionable, unquestionably, unquestioned, unquestioning, unquestioningly, unquiet, unquote, unravel, unread,