相关单词同义词unknown, sealed, 近义词 unknown 未知的, unmapped 未绘制地图的..., unexplored 未勘查过的, new 新的, unfamiliar 不熟悉的, alien 外侨, strange 奇怪的, uncultivated 未耕作的, chartless 图籍未载的临近词UN, undld相似词unchanged, unchanging, uncharacteristic, uncharitable, uncheck, unchecked, unchristian, uncivil, 返回 uncharted