If someone is inarticulate, they are unable to express themselves easily or well in speech.
例句
Inarticulate and rather shy, he had always dreaded speaking in public...他不善言辞又相当害羞,一直害怕在公共场合讲话。Kempton made an inarticulate noise at the back of his throat as if he were about to choke.肯普顿嗓子眼里发出含混的声音,仿佛他要窒息了。
英汉词典释义
adj.
不善辞令的
an inarticulate speaker口齿不清的演讲者His parents were dull and inarticulate.他的父母亲头脑愚钝又不善说话。
英英词典释义
Adjective
1. without or deprived of the use of speech or words;
"inarticulate beasts""remained stupidly inarticulate and saying something noncommital""inarticulate with rage""an inarticulate cry"