conduct or activity that playfully causes petty annoyance.

a tendency or disposition to tease, vex, or annoy.

a vexatious or annoying action.

harm or trouble, esp. as a result of an agent or cause.

an injury or evil caused by a person or other agent or cause.

a cause or source of harm, evil, or annoyance.

the devil.

noun

behavior , obedience

noun

atrocity , catastrophe , devilment , devilry , dirty trick , evil , fault , friskiness , frolicsomeness , funny business , gag , harm , high jinks , hurt , ill , impishness , injury , misbehavior , mischievousness , misconduct , misdoing , misfortune , monkey business * , naughtiness , outrage , playfulness , prank , rascality , roguery , roguishness , sabotage , shenanigans , sportiveness , transgression , vandalism , waggery , waggishness , waywardness , wrong , wrongdoing , deviltry , diablerie , prankishness , tomfoolery , devil , imp , prankster , rascal , rogue , scamp , damage , detriment , adventure , caper , escapade , hanky-panky , harlequinade , hob , hocus-pocus , knavery , misdeed , ploy , trouble