Modifiers matching grump:

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

Simple categories matching condescending:

• gentleman,
• detective,
• snob,
• person,
• journalist,
• intellectual,
• professor,
• aristocrat,
• general,
• doctor,
• reporter,
• philosopher,
• humorist,
• campaigner,
• scientist,
• writer,
• politician,
• bully,
• emperor,
• tyrant,
• grump,
• president,
• king,
• pundit,
• ceo,
• husband,
• teacher,
• novelist,
• linguist,
• presenter,
• inventor,