Synonyms for Mischief:

adj.

evil (adjective)
ill, catastrophe.

n.

entertainment, distraction, fling, fun, diversion, amusement, giggle, frolic, gaieties. rascal, cutup, rogue, troublemaking, scaremongering, scamp, scare tactics, prankster, imp, rowdiness. crime (noun)
infringement, offense, injustice, misdemeanor, breach, violation, crime, felony, outrage, infraction, transgression.
evil (noun)
calamitousness, sinisterness, detriment, wickedness, abomination, evil, Repellency, monstrosity, bane, damnation, hideousness, sinfulness, nefariousness, reprehensibleness, offensiveness, repulsiveness, disgrace, terribleness, foulness, badness, heinousness, atrocity.
misbehavior (noun)
Misdoing.
mischief (noun)
maleficence, rascality, mischief-making, mischievousness, balefulness, shenanigan, devilment, devilry, roguery, deviltry, roguishness.
prankishness (noun)
misbehavior, waggishness, fault, frolicsomeness, dignity, playfulness, misconduct, sportiveness, friskiness, Misdoing, sedateness, demureness, wrongdoing.
trouble, damage (noun)
transgression, misconduct, friskiness, waggishness, sportiveness, frolicsomeness, roguishness, Misdoing, playfulness, devilry, mischievousness, catastrophe, outrage, roguery, devilment, rascality, misbehavior, atrocity, evil, ill, wrongdoing, fault, High Jinks.

v.

damage (verb)
trouble.

Other synonyms:

High Jinks, scare tactics, cutup, scaremongering, prankster. imp, scamp, rogue, Diablerie, rascal. tomfoolery. misbehavior
misconduct.
transgression
misbehavior.

Usage examples for mischief

  1. It will keep him out of mischief – Love, The Fiddler by Lloyd Osbourne
  2. But what the mischief do she and Adah mean by saying that they owe me so much? – A Day Of Fate by E. P. Roe
  3. Yet again, what if he should actually put the mischief into his thoughts! – Donal Grant by George MacDonald