adj.前兆的;不吉的;可怕的;煞有介事的;自命不凡的
The present aspect of society is portentous of great change. 现在的社会预示着重大变革的发生。
I see a portentous thing to come. 我预感不祥的事情要来到了。
Keep it, in any case, familiar, facetious even, rather then pedantic and portentous. 无论如何,要使它显得很随便,甚至滑稽可笑,而不要显得很迂腐,夜郎自大。