1.
Pneumonoultramicroscopicsilicovolcanoconiosis
2.
Pseudopseudohypoparathyroidism
3.
Floccinaucinihilipilification
4.
Antidisestablishmentarianism
5.
Honorificabilitudinitatibus
6.
Electroencephalographically
7.
Thyroparathyroidectomized
8.
Dichlorodiphenyltrichloroethane
9.
Hepaticocholecystostcholecystenterostomies
12.
Transubstantiationalists
15.
Counterrevolutionaries