the GNU version of the Collaborative International Dictionary of English
ad. In a placid manner.
The Century Dictionary and Cyclopedia
In a placid manner; calmly; quietly; without disturbance or passion.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. in a quiet and tranquil manner
ad. in a placid and good-natured manner
Word Usage
"Indeed, so dramatic was the change from the placidly religious and conservative 1950s that in 1966 this theology made it to the cover of Time magazine see Figure 4.1."