1815Jane Austen Emma xvi, Difficulties..enough to occupy her in most unmirthful reflections.
1835Lytton Rienzi i. iv, None saw that the unmirthful flash [of wit] was the token of the coming storm.
英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。