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1. Strictly observant of or devoted to ceremony, ritual, or etiquette; punctilious: "borne on silvery trays by ceremonious world-weary waiters" (Financial Times).
a. Characterized by ceremony.
b. In accord with prescribed or customary usage; rigidly formal.

cer′e·mo′ni·ous·ly adv.
cer′e·mo′ni·ous·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ceremoniousness - a ceremonial manner
formalness, formality - a manner that strictly observes all forms and ceremonies; "the formality of his voice made the others pay him close attention"
unceremoniousness - an unceremonial manner
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


Strict observance of social conventions:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
But give me your hand, senora; I require no better protection than my own continence, and my own sense of propriety; as well as that which is inspired by that venerable head-dress;" and so saying he kissed her right hand and took it in his own, she yielding it to him with equal ceremoniousness. And here Cide Hamete inserts a parenthesis in which he says that to have seen the pair marching from the door to the bed, linked hand in hand in this way, he would have given the best of the two tunics he had.
FRANCIS PARKMAN, BORN ON BEACON Hill, was heir to a considerable fortune, earned by his paternal grandfather in the China trade; to Unitarian orthodoxy, for his father was the pastor of Boston's New North Church, and with the entrepreneur grandfather the benefactor of the Parkman Professorship of Pulpit Eloquence and the Pastoral Care at the Harvard Divinity School; and to all the respectable ceremoniousness that such distinction entails.
Conviction and a constitutional Predisposition to Ceremoniousness, in piety as in manners, find her Forms and Ordinances Aids of Religion, not sources of Formality.
Deliberate antiquarianism marks the various sections' names: "Intrada", "Sarabande," "Coranto," "Madrigal." Publisher Hubert Foss correctly praised "Summer's Last Will" for conveying Tudor life "in the reality of all its splendor and all its dirt." Indubitably Lambert--what with his wild terpsichorean enthusiasms, his extremes of pride and self-laceration, the ceremoniousness of his verbal thrusts--would have coped far better in 16th-century than in 20th-century England.