The word `` antidisestablishmentarianism '' is notable for its unusual length of 28 letters and 12 syllables ( an-ti-dis-es-tab-lish-men-tar-i-an-is-m ) , and is one of the longest words in the English language .
Antidisestablishmentarianism is one of the longest words in the English language . It has 28 letters and 12 syllables .