bleakly
ceremoniously
decorously
demurely
dismally
drearily
earnestly
formally
funereally
gloomily
grandly
gravely
grimly
heavily
imposingly
in due form
in set form
loftily
magisterially
majestically
nobly
pro forma
regally
ritualistically
ritually
royally
sadly
sedately
seriously
sober-mindedly
soberly
sobersidedly
somberly
sombrously
staidly
stately
thoughtfully
venerably
with dignity
worthily