彼は言葉数が少ない。の英語

He is brief of speech.

He doesn't really use colloquialism.

He usually doesn't speak in slang much.

He doesn't talk much.

He speaks little.

His words carry little conviction.

He is never at a loss for a word.

He doesn't talk very much.

He has no confidence in his words.

He's not to be put off with words.

He uses simple words as much as possible.

there is a musky roundness to his wordiness

We can not understand each other―make ourselves understood by each other―make ourselves intelligible to each other―We are ignorant of each other's language.

He is a poor storyteller.

He expressed his opinion in a few words.

He speaks drily, but to the point.

His words are hardly worth notice.

He is sincere about what he says.

What rude language he uses!

He is always talking nonsense―talking rot.

He is usually rather taciturn.

His words and action do not accord.

His words don't line up with his actions.

Almost no one believed him.

He doesn't really seem to want to say anything.

He talks drily, but to the point.

He can't really read Chinese characters.

I can't thank him enough.

I can scarcely hear him.

He doesn't speak our language.