sesquipedalian

Noun
  1. A very long word (a foot and a half long) (synset 106316464)
    is a type of: polysyllabic word, polysyllable - a word of more than three syllables
    same as: sesquipedalia
Adjective
  1. Given to the overuse of long words (synset 301857258)
    "sesquipedalian orators"; "this sesquipedalian way of saying one has no money"
    similar to: pretentious - making claim to or creating an appearance of (often undeserved) importance or distinction
  2. (of words) long and ponderous;
    Having many syllables (synset 301438550)
    "sesquipedalian technical terms"
    similar to: long - primarily spatial sense; of relatively great or greater than average spatial extension or extension as specified
    same as: polysyllabic

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