blunder vs misstep

blunder and misstep both are nouns.

Word	Noun	Adjective	Verb	Adverb
blunder	Yes	No	Yes	No
misstep	Yes	No	No	No

As nouns, misstep is a hyponym of blunder; that is, misstep is a word with a more specific, narrower meaning than blunder:

blunder (noun)	misstep (noun)
an embarrassing mistake	an unintentional but embarrassing blunder

blunder (verb)	misstep (verb)
utter impulsively
make one's way clumsily or blindly
commit a faux pas or a fault or make a serious mistake