blooper vs blunder

blooper and blunder both are nouns.

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

As nouns, blooper and blunder are synonyms defined as:

Other synonyms of blooper include bloomer, boner, boo-boo, botch, bungle, flub, foul-up, fuckup, pratfall.

blooper (noun)	blunder (noun)
an embarrassing mistake	an embarrassing mistake

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