sesquipedalian.
Long; polysyllabic.
Meaning & usage
Long; polysyllabic.
The most common use of "antidisestablishmentarianism" is as an example of a sesquipedalian word.
Pertaining to or given to the use of overly long words.
Our dinner guest was so sesquipedalian that no one could understand what he said.
Where this word comes from
From sesquipedal + -ian (adjective- and noun-forming suffix), root from Latin sēsquipedālis (literally “a foot and a half long”), from Latin sēsqui (“one and a half times”) + Latin pedālis (“measuring a foot, foot (relational)”) (an adjective from pēs (“foot”)).
A long word.
A person who uses long words.
Where this word comes from
From sesquipedal + -ian (adjective- and noun-forming suffix), root from Latin sēsquipedālis (literally “a foot and a half long”), from Latin sēsqui (“one and a half times”) + Latin pedālis (“measuring a foot, foot (relational)”) (an adjective from pēs (“foot”)).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.