riskiness vs peril

riskiness and peril both are nouns.

Word	Noun	Adjective	Verb	Adverb
riskiness	Yes	No	No	No
peril	Yes	No	Yes	No

As nouns, riskiness and peril are synonyms defined as:

riskiness (noun)	peril (noun)
a state of danger involving risk	a venture undertaken without regard to possible loss or injury
	a source of danger; a possibility of incurring loss or misfortune
	a state of danger involving risk

riskiness (verb)	peril (verb)
	put in a dangerous, disadvantageous, or difficult position
	pose a threat to; present a danger to