All 6 Uses

placid
in
Frankenstein, by Mary Shelley
(Edited)

The blue lake and snow-clad mountains—they never change; and I think our placid home and our contented hearts are regulated by the same immutable laws.
p. 66.2

placid = peaceful
I contemplated the lake: the waters were placid; all around was calm; and the snowy mountains, 'the palaces of nature,' were not changed.
p. 76.4

placid = calm
Your summits are clear; the sky and lake are blue and placid.
p. 76.7 *
The colleges are ancient and picturesque; the streets are almost magnificent; and the lovely Isis, which flows beside it through meadows of exquisite verdure, is spread forth into a placid expanse of waters, which reflects its majestic assemblage of towers, and spires, and domes, embosomed among aged trees.
p. 165.4

placid = peaceful or calm
She looked forward to our union with placid contentment, not unmingled with a little fear, which past misfortunes had impressed, that what now appeared certain and tangible happiness might soon dissipate into an airy dream and leave no trace but deep and everlasting regret.
p. 195.7

placid = calm
Not because the way was smooth and placid as a southern sea, but because it was full of dangers and terror, because at every new incident your fortitude was to be called forth and your courage exhibited, because danger and death surrounded it, and these you were to brave and overcome.
p. 217.4

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