By Kurt Grelling:
All adjectives may be divided into two types: self-descriptive and non-self-descriptive. Adjectives like English, short, and polysyllabic are self-descriptive. Adjectives like German, long, and monosyllabic are non-self-descriptive. To which set... er, type, does the adjective non-self-descriptive belong?

A Blather of Paradoxes