graveness n. 重大, 严肃 释义与例句 n. 1. The state of being grave; gravity 不可数 词汇关系 名词 同义词 5 gravity sobriety soberness somberness sombreness 上位词 4 sincerity seriousness earnestness serious-mindedness 下位词 2 stuffiness stodginess 词源 From grave + -ness. 来源：wiktionary