mischievousness vs roguery

mischievousness and roguery both are nouns.

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

As nouns, mischievousness and roguery are synonyms defined as:

mischievousness and roguery: reckless or malicious behavior that causes discomfort or annoyance in others

Other synonyms of mischievousness include devilment, devilry, deviltry, mischief-making, mischief, rascality, roguishness, shenanigan.

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