相关单词同义词unheard, of, all, time, 近义词 extraordinary 非凡的, exceptional 异常的, unduplicated 无复制品的, unique 独特的, amazing 令人惊异的, signal 信号, original 原始的, unparalleled 无比的, record 唱片, first-time 第一次, unmatched 无配偶的反义词precedented, 有先例的临近词unpredictable, unpopular, unprecedentedly, unprecedentedness, unprecedented move, unprecedented rise, unprecedented risk, unprecedented sales, Unprecedented story, unprecedented scale, unprecedented danger, unprecedented dilemma相似词unpleasant, unplug, unplugged, unpopular, unpredictable, unpremeditated, unprepared, unprepossessing, 返回 unprecedented