bloomer vs foul-up

bloomer and foul-up both are nouns.

Word	Noun	Adjective	Verb	Adverb
bloomer	Yes	No	No	No
foul-up	Yes	No	No	No

As nouns, bloomer and foul-up are synonyms defined as:

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

bloomer (noun)	foul-up (noun)
an embarrassing mistake	an embarrassing mistake
a flower that blooms in a particular way