Modifiers matching grump:

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

Simple categories matching rich:

• person,
• waveform,
• fare,
• condiment,
• billionaire,
• grump,
• furnishing,
• activity,
• tycoon,
• poultry,
• businessman,
• king,
• orphan,
• dessert,
• herb,
• cofactor,
• ceo,
• sauce,
• dictator,
• fruit,
• deposit,
• compound,
• client,
• waste,
• foodstuff,
• dressing,
• investor,
• smuggler,
• fabric,
• program,
• emperor,
• politician,
• chemical,
• pianist,
• scientist,
• culture,
• brown,
• singer,
• molecule,
• drink,
• behaviour,
• plant,
• hardwood,
• musician,
• fibre,
• technologist,
• royal,
• metal,
• work,
• publisher,
• filling,
• juice,
• soil,
• food,
• mineral,
• experience,
• seafood,
• area,
• people,
• coal,
• thing,
• breakfast,
• macromolecule,
• matter,
• organs,
• leaf,
• prey,
• beverage,
• service,
• organization,
• website,
• gas,
• behavior,
• interaction,
• seed,
• material,
• structure,
• vegetable,
• tyrant,
• stuff,
• recluse,
• bird,
• soup,
• flora,
• wine,
• cluster,
• detail,
• pudding,
• feed,
• tradition,
• system,
• pasta,
• country,
• part,
• textile,
• philanthropist,
• fool,
• inventor,
• decoration,
• timber,
• miser,
• rock,
• format,
• matrix,
• red,
• meal,
• veg,
• atmosphere,
• details,
• meat,
• programmer,
• resource,
• autocrat,
• gentleman,
• nut,
• playboy,
• ingredient,
• aristocrat,
• tissue,
• alloy,
• cake,
• fuel,
• art,
• criminal,
• stone,
• medium,
• liquid,
• liquor,
• animal,
• application,
• husband,
• capitalist,
• shellfish,
• fish,
• document,
• communication,
• sausage,
• child,
• wife,
• product,
• cereal,
• confection,
• surface,
• oil,
• grain,
• cue,
• flower,
• villain,
• control,
• bully,
• substance,
• pastel,
• wood,
• limestone,
• meaning,
• fiber,
• cheese,
• pioneer,
• information,
• berry,
• dish,
• tree,
• forage,
• finish,
• content,
• green,
• domain,
• feature,
• lubricant,
• attribute,
• aroma,