Emily Dickinson Lexicon

CER-E-MO'NI-OUS, a.

1. Consisting of outward forms and rites; as, the ceremonious part of worship. In this sense, ceremonial is now used.
2. Full of ceremony or solemn forms. – Shak.
3. According to the rules and forms prescribed or customary; civil; formally respectful. “Ceremonious phrases.” – Addison.
4. Formal; according to the rules of civility; as, to take a ceremonious leave.
5. Formal; exact; precise; too observant of forms.