prankishness vs mischievousness

prankishness and mischievousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
prankishness	Yes	No	No	No
mischievousness	Yes	No	No	No

As nouns, mischievousness is a hypernym of prankishness; that is, mischievousness is a word with a broader meaning than prankishness:

Other hypernyms of prankishness include badness, naughtiness.

prankishness (noun)	mischievousness (noun)
the trait of indulging in disreputable pranks	reckless or malicious behavior that causes discomfort or annoyance in others
	an attribute of mischievous children
	the trait of behaving like an imp