1865Times 11 Mar. 8/6 He, too, puts speed first of all.., and armour-plating or ‘unsinkability’ nowhere.
1891Naut. Mag. Mar. 236 The unsinkability of cargo-carrying vessels.
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。