The phrase "was ostentatious" refers to something or someone who displays their wealth or status in a showy or extravagant way. There are several synonyms that can be used to describe this type of behavior, such as pretentious, grandiose, pompous, flashy, and flamboyant. Pretentious often carries a negative connotation, suggesting a lack of authenticity or sincerity in one's display of wealth or status. Grandiose implies a tendency towards excessive or over-the-top behavior. Pompous suggests an air of self-importance or arrogance. Flashy and flamboyant both suggest a showy, attention-grabbing display of wealth or status, often involving bright colors, bold patterns, and expensive materials.