Wordnet 3.0
ADVERB (2)
1.
in a quiet and tranquil manner;
- Example: "the sea now shimmered placidly before our eyes"2.
in a placid and good-natured manner;
- Example: "I put the questions, and she answered them placidly"
The Collaborative International Dictionary of English v.0.48:
Placidly \Plac"id*ly\, adv.
In a placid manner.
[1913 Webster]
WordNet (r) 3.0 (2006):
placidly
adv 1: in a quiet and tranquil manner; "the sea now shimmered
placidly before our eyes"
2: in a placid and good-natured manner; "I put the questions,
and she answered them placidly"