noun
written and spoken words; description
Almost always used in the negative phrase 筆舌に尽くしがたい, meaning something is beyond description or indescribable. Rarely used independently.
See also: 筆舌に尽くしがたい
その景色の美しさは筆舌に尽くしがたい。
The beauty of that scenery is beyond description.
彼の苦労は筆舌に尽くしがたいものだった。
His hardships were indescribable.