consternation vs alarm

consternation and alarm both are nouns.

Word	Noun	Adjective	Verb	Adverb
consternation	Yes	No	No	No
alarm	Yes	No	Yes	No

As nouns, consternation and alarm are synonyms defined as:

Other synonyms of consternation include dismay.

consternation (noun)	alarm (noun)
fear resulting from the awareness of danger	a device that signals the occurrence of some undesirable event
	a clock that wakes a sleeper at some preset time
	an automatic signal (usually a sound) warning of danger
	fear resulting from the awareness of danger

consternation (verb)	alarm (verb)
	warn or arouse to a sense of danger or call to a state of preparedness
	fill with apprehension or alarm; cause to be unpleasantly surprised