Modifiers matching killer:

• unscrupulous,
• conniving,
• unstoppable,
• shrewd,
• murderous,
• sociopathic,
• cunning,
• athletic,
• maniacal,
• literate,
• determined,
• proficient,
• ruthless,
• evil,
• bullying,
• current,
• erudite,
• cold,
• smart,
• demonic,
• diabolical,
• modern,
• bald,
• scheming,
• intelligent,
• inhuman,
• elusive,
• ugly,
• anti-social,
• hot-tempered,
• deadly,
• tyrannical,
• formidable,
• jealous,
• malicious,
• reckless,
• seductive,
• deceitful,
• nimble,
• creepy,
• amoral,
• unforgiving,
• racist,
• militaristic,
• Machiavellian,
• untrustworthy,
• undaunted,
• animalistic,
• real,
• diligent,
• pudgy,
• driven,
• global,
• common,
• elegant,
• heartless,
• psychotic,
• quick-tempered,
• despotic,
• tactical,
• relentless,
• psychopathic,
• bigoted,
• dishonest,
• misogynistic,
• immoral,
• sinister,
• defiant,
• trigger-happy,
• rapacious,
• twisted,
• remorseless,
• suspenseful,
• aristocratic,
• homicidal,
• fast,
• deranged,
• potential,
• laconic,
• acquisitive,
• messianic,
• major,
• resourceful,
• sadistic,
• straightforward,
• eloquent,
• pandemic,
• immediate,
• devious,
• cold,
• repressive,
• talented,
• wild-haired,
• greedy,
• vicious,
• menacing,
• sophisticated,
• charming,
• expressionless,
• dangerous,
• strategic,
• uncaring,
• dapper,
• strong,
• violent,
• sexually-confused,
• duplicitous,
• cynical,
• vengeful,
• richly-voiced,
• female,
• brave,
• underwater,
• brutal,
• malevolent,
• self-regarding,
• cruel,
• dashing,
• cultured,
• traditional,
• professional,
• blooded,
• unfeeling,
• manipulative,
• emotionless,
• dictatorial,
• blank-faced,
• big,
• unhinged,
• urbane,
• cultivated,
• narcissistic,
• quick-thinking,
• unkillable,
• calculating,
• wicked,
• agile,
• balletic,
• sartorial,
• suave,
• snooty,
• merciless,
• callous,
• bloodthirsty,
• devastating,
• insubordinate,
• enigmatic,
• exploitative,
• predatory,

Simple categories matching jealous:

• tyrant,
• aristocrat,
• son,
• person,
• fool,
• snob,
• killer,
• clown,
• villain,
• teenager,
• pianist,
• musician,
• grump,
• lover,
• psychopath,
• child,
• composer,
• pretender,
• genius,
• duck,
• criminal,