calm vs unruffled

calm is a noun but unruffled is not a noun.

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

calm (noun)	unruffled (noun)
steadiness of mind under stress
wind moving at less than 1 knot; 0 on the Beaufort scale

calm (adjective)	unruffled (adjective)
(of weather) free from storm or wind	(of a body of water) free from disturbance by heavy waves
not agitated; without losing self-possession	free from emotional agitation or nervous tension

calm (verb)	unruffled (verb)
cause to be calm or quiet as by administering a sedative to
make steady
make calm or still
become quiet or calm, especially after a state of agitation