placid

Undisturbed by tumult or disorder; calm or quiet.

Not agitated physically; not disturbed.

Not easily upset or excited; mild or complacent: synonym: calm.

Gentle; quiet; undisturbed; equable; serene; calm; unruffled; peaceful; mild.

Synonyms Tranquil, Serene, etc. See calm.

Pleased; contented; unruffied; undisturbed; serene; peaceful; tranquil; quiet; gentle.

calm and quiet; peaceful; tranquil

not easily irritated

(of a body of water) free from disturbance by heavy waves