mirthfulness n. 欢乐 别名 mirthfulnesse 释义与例句 n. 1. The property of being mirthful; happiness 不可数 词汇关系 名词 同义词 4 glee mirth hilarity gleefulness 上位词 2 merriment gaiety 词源 From mirthful + -ness. 来源:wiktionary