From Longman Dictionary of Contemporary Englishceremoniouscer‧e‧mo‧ni‧ous /ˌserəˈməʊniəs◂ $ -ˈmoʊ-/ adjective ATTENTIONdone in a formal serious way, as if you were in a ceremony —ceremoniously adverb He ceremoniously burnt the offending documents.
Examples from the Corpus
ceremonious• She picked up her handbag, and he rose from behind his desk to take a relieved and ceremonious farewell.• These are haunting and elegiac poems, in which expressions of sorrow and loss are given ceremonious form.• Chapel and Sunday-school were to me cruel ceremonious punishments for the freedom of Monday to Saturday ...• Not the most ceremonious release for a fresh faced coin still cutting its teeth. 