ceremonious

形容词 ceremonious:

1. characterized by pomp and ceremony and stately display
   同义词：pompous
2. rigidly formal or bound by convention
   同义词：conventional

1. A showy or ceremonious passage, such as a fanfare.
   装饰乐句，花式吹奏一段炫耀或讲究仪式的音乐，例如小号曲
2. Rigorous or ceremonious adherence to established forms, rules, or customs.
   拘泥形式遵照或顺从已被确认的形式、规则或习俗
3. He unveiled the picture with a ceremonious gesture.
   他郑重其事地为这幅画揭幕。

cer.e.mo.ni.ous

adj.（形容词）
Strictly observant of or devoted to ceremony, ritual, or etiquette; punctilious:
拘礼的：严格遵循或讲究礼仪、仪式或礼节的；拘礼的：
例句：
.borne on silvery trays by ceremonious world-weary waiters.(Financial Times)
.放在彬彬有礼的厌世侍者托着的银盘上.(金融时报)

Characterized by ceremony:
礼节性的：
例句：
.Putting on a hat can be a ceremonious act, an elegant gesture in the ritual of dressing.(Ruth La Ferla)
.戴帽子被看作一种礼节性的举动，是着装仪式上一个优雅的举动.(露丝·拉·费拉)

In accord with prescribed or customary usage; rigidly formal:
拘泥的：合乎习俗或俗套的；严格正统的：
例句：
Their ceremonious greetings did not seem heartfelt.
他们礼节性的欢迎看起来并不是出于真心的

【引伸】
cer.emo.niously
adv.（副词）
cer.emo.niousness
n.（名词）