Meanings
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1
adj
Calm and not easily upset or excited.
She has a placid temperament and rarely loses her temper.
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2
adj
(of water) Smooth and undisturbed.
The boat glided across the placid lake at dawn.
Thesaurus
Etymology
Etymology tree Latin placeō Proto-Indo-European *dʰeh₁-der. Latin -idus Latin placiduslbor. French placide English placid Borrowed from French placide, from Latin placidus (“peaceful, calm, placid”), from placeō (“please, satisfy”).