i Register
In some senses, serene is marked as archaic, poetic. Watch for register when choosing this word.
adj
Calm, peaceful, unruffled.
She looked at her students with joviality and a serene mentality.
Serene, smiling, enigmatic, she faced him with no fear whatever showing in her dark eyes. The clear light of the bright autumn morning had no terrors for youth and health like hers.
Without worry or anxiety; unaffected by disturbance.
I took train and reached Wichita, where my active partner was awaiting me. He had just returned from the Medicine River, and reported everything serene.
Fair and unclouded (as of the sky); clear; unobscured.
Now ſleeping flocks on their ſoft fleeces lie, / The moon, ſerene in glory, mounts the sky, […]
Full many a gem of pureſt ray ſerene / The dark unfathom'd caves of ocean bear: […]
Used as part of certain titles, originally to indicate sovereignty or independence.
Her Serene Highness
verb
To make serene.
The Hoary Froſts, and Northern Blaſts take care / Thy muddy Bev'rage to ſerene, and drive / Præcipitant the baſer, ropy Lees.
When heaven and earth, as if contending, vye / To raiſe his being, and ſerene his ſoul.
noun
Serenity; clearness; calmness.
the serene of heaven
To their master is denied / To share their sweet serene.