When Someone Is Wordless?

You say that someone is wordless when they do not say anything, especially at a time when they are expected to say something.

What does it mean to be wordless?

1 : not expressed in or accompanied by words a wordless picture book. 2 : silent, speechless sat wordless throughout the meeting.

Does the word wordless exist?

1. Not expressed in words; unspoken: wordless animosity; wordless joy.