snafu vs bloomer

snafu and bloomer both are nouns.

Word	Noun	Adjective	Verb	Adverb
snafu	Yes	Yes	Yes	No
bloomer	Yes	No	No	No

As nouns, bloomer is a hypernym of snafu; that is, bloomer is a word with a broader meaning than snafu:

snafu: an acronym often used by soldiers in World War II: situation normal all fucked up
bloomer: an embarrassing mistake

Other hypernyms of snafu include blooper, blunder, boner, boo-boo, botch, bungle, flub, foul-up, fuckup, pratfall.

snafu (noun)	bloomer (noun)
an acronym often used by soldiers in World War II: situation normal all fucked up	an embarrassing mistake
	a flower that blooms in a particular way

snafu (adjective)	bloomer (adjective)
snarled or stalled in complete confusion

snafu (verb)	bloomer (verb)
cause to be in a state of complete confusion