polysyllabism noun2 •The state or characteristic of having or using words containing multiple syllables, sometimes as a stage in the development of language.Chinese polysyllabism is a sort of synthesis, or aggregation, or 'addition' of morphemes and their meanings. — 1936 •Polysyllabicism.Cumbrous compounds are formed as the names of objects and a character of tedious and time-wasting polysyllabism is given to the language. — 1867 formspolysyllabisms