appal vs dismay

appal is not a noun while dismay is a noun.

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

As verbs, appal and dismay are synonyms defined as:

appal and dismay: fill with apprehension or alarm; cause to be unpleasantly surprised

Other synonyms of appal include alarm, appall, horrify.

appal (noun)	dismay (noun)
	fear resulting from the awareness of danger
	the feeling of despair in the face of obstacles

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