Modifiers matching grump:

• grouchy,
• heartless,
• covetous,
• mean,
• jealous,
• rich,
• ill-tempered,
• arrogant,
• penny-pinching,
• misanthropic,
• miserly,
• impatient,
• condescending,
• fastidious,
• grizzled,
• greedy,
• principled,
• wealthy,
• gruff,

Simple categories matching arrogant:

• person,
• aristocrat,
• bully,
• emperor,
• comedian,
• husband,
• detective,
• reporter,
• businessman,
• king,
• child,
• grump,
• adventurer,
• billionaire,
• tyrant,
• technologist,
• god,
• singer,
• president,
• presenter,
• hero,
• campaigner,
• composer,
• scholar,
• journalist,
• snob,
• narcissist,
• humorist,
• psychopath,
• terrorist,
• ceo,
• scientist,
• actor,
• boxer,
• sportsman,
• friend,
• philosopher,
• professor,
• intellectual,
• dissident,
• engineer,
• criminal,
• sculptor,
• novelist,
• general,
• hunter,
• conqueror,
• mathematician,
• queen,
• pretender,
• invalid,
• heroine,
• princess,
• student,
• magician,
• dictator,
• artist,
• pioneer,
• doctor,
• linguist,
• actress,
• mastermind,
• fool,
• writer,
• playboy,
• painter,
• genius,
• warrior,
• villain,
• publisher,
• thug,
• inventor,
• chef,
• executive,
• gentleman,
• tycoon,
• athlete,
• wizard,