Last Updated：2025/11/19

(uncountable) The practice of using long, sometimes obscure, words in speech or writing. / (countable) A very long word.

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sesquipedalianism

Source Word

sesquipedalianism

IPA(Pronunciation)

uncountable countable

(uncountable) The practice of using long, sometimes obscure, words in speech or writing. / (countable) A very long word.

Japanese Meaning

（不可算）長く、時にあいまいな単語を用いる習慣、すなわち、文章や会話において過度に複雑な語彙を使用すること。 / （可算）非常に長い単語そのもの。

His essays were criticized for their sesquipedalianism, which often obscured clear arguments beneath an avalanche of multisyllabic words.

彼のエッセイは、長く時に難解な語を多用することが批判され、しばしば多音節の語の洪水の下に明確な議論が隠れてしまっていた。

Sense（1）

(uncountable) The practice of using long, sometimes obscure, words in speech or writing.

Sense（2）

(countable) A very long word.

sesquipedalianisms

（ plural ）