(adv) to an inexpressible degree, Syn. unutterably, indescribably, unspeakably, Example:she was looking very young tonight, and, as usual, indescribably beautiful, in a simple strapless dress of a green and white silky cotton
(adj) not made explicit, Syn. unverbalised, unspoken, unstated, unverbalized, unvoiced, unuttered, unsaid, Example:the unexpressed terms of the agreement; things left unsaid; some kind of unspoken agreement; his action is clear but his reason remains unstated