Milquetoast
/ˈmɪlktəʊst/noun
- chiefly N. Amer. a person who is timid or submissive〈主北美〉胆小如鼠的人; 卑躬屈膝者, 懦夫：
as modifier a soppy, Milquetoast composer.一位感伤懦弱的作曲家。
词源
1930s: from the name of a cartoon character, Caspar Milquetoast, created by H. T. Webster in 1924.