嘴懒[zuǐ lǎn]
词典not incline to talk much：嘴懒。
词典danci.911cha.com
词典taciturn：沉默寡言的，不爱说话的。
not incline to talk much; taciturn
1. 911查询·英语单词
1. 彼得嘴懒了不愿意回答。 Peter was tongue-tired.