POLYSYLLABIC
polysyllabic, sesquipedalian
(adjective) (of words) long and ponderous; having many syllables; “sesquipedalian technical terms”
polysyllabic
(adjective) having or characterized by words of more than three syllables
Source: WordNet® 3.1
Etymology
Adjective
polysyllabic (not comparable)
(of a word) Having more than one syllable; having multiple or many syllables.
(of spoken or written language) Characterized by or consisting of words having numerous syllables.
Usage notes
Authoritative sources disagree concerning the precise number of syllables needed for a word to count as polysyllabic. The references cited below variously stipulate anywhere from more than one syllable to four or more. In general usage, a polysyllabic word is a word which is regarded as lengthy and polysyllabic writing or speech is often regarded as elaborate, overly lengthy, or excessively complex.
Synonyms
• (of a word): multisyllabic
Antonyms
• monosyllabic
• brachysyllabic
Noun
polysyllabic (plural polysyllabics)
A word having more than one syllable
Source: Wiktionary
Pol`y*syl*lab"ic, Pol`y*syl*lab"ic*al, a. Etym: [Gr. polysyllabique.]
Definition: Pertaining to a polysyllable; containing, or characterized by,
polysyllables; consisting of more than three syllables.
Source: Webster’s Unabridged Dictionary 1913 Edition