<p><strong>Adjective</strong></p><ul><li>temporarily deprived of speech by strong emotion, physical weakness, exhaustion, etc.: speechless with alarm</li><li>characterized by absence or loss of speech: speechless joy</li><li>lacking the faculty of speech; dumb</li><li>not expressed in speech or words: speechless compliments</li><li>refraining from speech</li></ul>