cyclopentanoperhydrophenanthrened

(/ˌsaɪkləʊˌpɛntənəʊˌpɜːhɪdraʊˌfɛnənθriːnd/)

adj.

Irrational or incoherent in speech and actions caused by alcohol.

Tereka confidently declared their plans to start a gourmet grilled cheese restaurant, sounding surprisingly cyclopentanoperhydrophenanthrened.

Source: Wiktionary