Definition of multisyllabic in English:

multisyllabic

adjective

  • Consisting of several syllables; polysyllabic.

Origin

Early 20th century. From multi- + syllabic. Compare earlier monosyllabic, polysyllabic, etc., and multisyllable.

Pronunciation

multisyllabic

/ˌmʌltɪsɪˈlabɪk/