Modifiers matching duck:

• common,
• jealous,
• unusual,
• tenacious,
• smaller,
• determined,
• slobbery,
• optimistic,
• rare,
• indigenous,
• pushy,
• aggressive,
• small,
• wild,
• insecure,
• large,
• domestic,
• brash,
• here,
• short-tempered,
• boastful,
• marine,
• native,
• larger,
• bullying,
• zany,
• paranoid,
• breeding,
• daffy,
• lisping,

Simple categories matching bullying:

• conqueror,
• revolutionary,
• person,
• politician,
• bully,
• billionaire,
• promoter,
• tyrant,
• producer,
• psychopath,
• fascist,
• thug,
• dictator,
• terrorist,
• spy,
• killer,
• duck,
• autocrat,
• king,
• assassin,
• vigilante,
• warrior,
• demon,
• villain,
• hunter,
• criminal,
• vampire,
• tycoon,
• teenager,
• businessman,
• robot,