FLAT (stale)
ADJECTIVES
► APPALLED rendered flat or stale, as a fermented liquor → 1601 obs.
► BLOWN flat, stale; that has lost its freshness → 1600 obs.
► INSULSE tasteless, dull or flat in taste → 1676
► PALLED of a fermented or aerated drink: flat, stale → 1475 obs.
Lexicophilia 