word ‧ less /ˈwɜːdləs $ ˈwɜːrd-/ BrE AmE adjective
[ Word Family: adjective : ↑ worded , ↑ wordless , ↑ wordy ; noun : ↑ word , ↑ wording ; verb : ↑ word ]
without using words SYN silent :
a wordless prayer
She threw her arms around him in wordless grief.
—wordlessly adverb :
She nodded wordlessly.