malicious mischief vs devilment

malicious mischief and devilment both are nouns.

Word	Noun	Adjective	Verb	Adverb
malicious mischief	Yes	No	No	No
devilment	Yes	No	No	No

As nouns, devilment is a hypernym of malicious mischief; that is, devilment is a word with a broader meaning than malicious mischief:

malicious mischief: willful wanton and malicious destruction of the property of others
devilment: reckless or malicious behavior that causes discomfort or annoyance in others

malicious mischief (noun)	devilment (noun)
willful wanton and malicious destruction of the property of others	reckless or malicious behavior that causes discomfort or annoyance in others