1. (a.) Elaborately formal or polite; as, a ceremonious display of courtesy; ceremonial. [In this sense ceremonial is now preferred.]
2. (a.) According to prescribed or customary rules and forms; devoted to forms and ceremonies; formally respectful; punctilious.
Thesaurus Entries
High-Church, attentive, baptismal, cap in hand, careful, ceremonial, chivalric, chivalrous, civil, conventional, correct, courteous, courtly, decorous, deferential, dignified, dutiful, eucharistic, formal, formular, formulary, gallant, grandiose, hieratic, honorific, imposing, impressive, knightly, liturgic, liturgistic, majestic, moving, old-fashioned, old-world, paschal, polite, pompous, proper, punctilious, regardful, respectful, ritual, ritualistic, sacerdotal, sacramental, sacramentarian, seemly, solemn, starchy, stately, stiff, striking, stuffy, well-mannered
