Adjective: inexpressible ,i-nik'spre-su-bul
- Defying expression; too extreme to be described in words
"She felt an inexpressible joy upon seeing her long-lost sister";
- unexpressible
See also: indefinable, indescribable, ineffable, undescribable, unspeakable, untellable, unutterable
Antonym: expressible
Encyclopedia: Inexpressible