Her new husband's family is moneyed.
born with a silver spoon in your mouth
He was born with a silver spoon in his mouth and has never worked a day in his life.
stinking rich
He won the lottery and now he's stinking rich.
rolling in it
They're absolutely rolling in it - they just bought a third house!
in the lap of luxury
She lives in the lap of luxury in her Beverly Hills mansion.
live like a king/
lord
He lives like a king, eating lobster twice a week and drinking champagne every night.
Antonym and example
poor
His parents were poor.
Go to the thesaurus article about these synonyms and antonyms of live high on/off the hog.
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If someone is rich, they have a lot of money.