Wordnet 3.0
ADVERB (1)
1.
in a proper and decorous manner;
- Example: "he pretended to be pleased and applauded decorously"
The Collaborative International Dictionary of English v.0.48:
Decorous \Dec"or*ous\ (d[e^]k"[-o]r*[u^]s or d[-e]*k[=o]"r[u^]s;
277), a. [L. dec[=o]rus, fr. decor comeliness, beauty; akin
to decere. See Decent, and cf. Decorum.]
Suitable to a character, or to the time, place, and occasion;
marked with decorum; becoming; proper; seemly; befitting; as,
a decorous speech; decorous behavior; a decorous dress for a
judge.
[1913 Webster]
A decorous pretext the war. --Motley.
-- De*co"rous*ly, adv. -- De*co"rous*ness, n.
[1913 Webster]
WordNet (r) 3.0 (2006):
decorously
adv 1: in a proper and decorous manner; "he pretended to be
pleased and applauded decorously" [ant: indecorously,
unbecomingly]