- Consisting of outward forms and rites; ceremonial. [In
this sense ceremonial is now preferred.] - According to prescribed or customary rules and forms;
devoted to forms and ceremonies; formally respectful; punctilious.
Meaning of 'ceremonious' (Princeton's WordNet)
1 . ceremonious
[ s]
Meaning (1): - rigidly formal or bound by convention
Example in sentence:
their ceremonious greetings did not seem heartfelt