ceremonious

adjective4

1. •
   According to the required or usual ceremonies, formalities, or rituals; specifically (Christianity, obsolete), to ceremonial laws in the Bible.

   • [L]et vs take a ceremonious leaue, / And louing farevvell of our seuerall friends. — 1595
2. •
   Involving much ceremony; ostentatious, showy.

   • O, the Sacrifice, / Hovv ceremonious, solemne, and vn-earthly / It vvas i'th' Offring? — 1610
3. •
   Synonym of ceremonial (“of, relating to, consisting of, or used in a ceremony or rite”); formal, ritual.
4. •
   Of a person: fond of ceremony or ritual, or of observing strict etiquette or formality; punctilious.

   • His onely delight is building, he spends himselfe to get curious intricate models and plots, another is vvholly ceremonious about titles, degrees, inscriptions. — 1624