ceremonious
Compareceremonially
The newly elected council members were officially and ceremoniously sworn in.
The governor flipped a switch to ceremoniously start the turbines in the state's first new power plant in 15 years.
He ceremoniously placed the captain's armband on his teammate.
SMART Vocabulary: related words and phrases
Manners & levels of formality
button-down
buttoned-up
casualization
ceremonious
ceremony
formally
genteelly
genteelness
gentility
grace
ground rules
non-U
not the done thingidiom
over-familiar
propriety
pukka
solemnity
valediction
valedictory
without ceremony