Modifiers matching duck:

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

Simple categories matching brash:

• tyrant,
• writer,
• person,
• father,
• hero,
• technologist,
• duck,
• fool,
• warrior,
• comedian,
• narcissist,
• robot,
• pioneer,
• actor,
• cowboy,
• explorer,
• bully,
• villain,
• thug,
• criminal,
• ceo,
• child,
• journalist,
• smuggler,
• rebel,
• thief,
• terrorist,
• spy,
• adventurer,
• vigilante,
• revolutionary,
• businessman,
• assassin,
• director,