dismay vs disheartenment

dismay and disheartenment both are nouns.

Word	Noun	Adjective	Verb	Adverb
dismay	Yes	No	Yes	No
disheartenment	Yes	No	No	No

As nouns, dismay and disheartenment are synonyms defined as:

dismay and disheartenment: the feeling of despair in the face of obstacles

Other synonyms of dismay include discouragement.

dismay (noun)	disheartenment (noun)
fear resulting from the awareness of danger	a communication that leaves you disheartened or daunted
the feeling of despair in the face of obstacles	the feeling of despair in the face of obstacles

dismay (verb)	disheartenment (verb)
fill with apprehension or alarm; cause to be unpleasantly surprised
lower someone's spirits; make downhearted