unruffled vs placid

unruffled and placid both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unruffled	No	Yes	No	No
placid	No	Yes	No	No

As adjectives, unruffled and placid are synonyms defined as:

unruffled and placid: (of a body of water) free from disturbance by heavy waves

Other synonyms of unruffled include quiet, smooth, still, tranquil.

unruffled (adjective)	placid (adjective)
(of a body of water) free from disturbance by heavy waves	(of a body of water) free from disturbance by heavy waves
free from emotional agitation or nervous tension	not easily irritated