pneumonoultramicroscopicsilicovolcanoconiosised

(/ˌnjuːmə.nəʊ.ʌl.tɹə.maɪ.kɹəʊˌskɒ.pɪkˌsɪ.lɪ.kəʊ.vɒl.keɪ.nəʊ.kəʊ.niˈəʊ.sɪsd/)

adj.

Unable to maintain posture due to alcohol.

Colt declared themselves the designated driver, though their wobbly stance suggested they were already quite pneumonoultramicroscopicsilicovolcanoconiosised.

Source: Wiktionary