weighty

a. important,momentous 重要的，重大的。
△1H.VI.2.1.61:“That,being captain of the watchto-night,/ Did look no better to that weightycharge.”你，身为昨夜的警卫队长，没有好好留心照管这个重大的责任。
△2H.VI.1.1.171(170): “This weighty busi-ness will not brook delay；”这样重大的事情不允许拖延。
△2H.VI.1.2. 85: “Make merry,man,/ With thyconfederates in this weighty cause.”汉子，你去跟参与这件大事的同伙们高兴地玩一玩吧。
△H.VIII.Pro.1:“thingsnow / That bear a weighty and a serious brow.” 一些又重要又严肃的事情。