Highroller synonyms include affluent, wealthy, rich, prosperous, successful, and well-off. Antonyms for highroller, on the other hand, are words that are opposite in meaning. Some antonyms for highroller include bankrupt, poor, broke, needy, penniless, and destitute. These antonyms can be used in sentences to illustrate the opposite of highroller. For example, "After losing all the money in gambling, the millionaire became a penniless man." or "Unlike his wealthy friend who always drove a luxury car, he had to take the bus because he was broke." Antonyms help to provide variety in language and improve communication skills.