- The definition of placid is calm or quiet.
An example of placid is a still lake in the middle of a forest.
A placid mountain lake.
placid definition by Webster's New World
Origin: Classical Latin placidus, akin to placere, to please
placid definition by American Heritage Dictionary
- Undisturbed by tumult or disorder; calm or quiet. See Synonyms at calm.
- Satisfied; complacent.
Origin: Latin placidus, from placēre, to please; see plāk-1 in Indo-European roots.
- pla·cidˈi·ty , placˈid·ness noun
- placˈid·ly adverb