Definitions

1. adjective

given to or characterized by showy or pretentious display or behavior; showy or pretentious

“The ostentative new neighbor was flaunting his wealth by throwing extravagant parties.”

2. adjective

ostentatiously elaborate or ornate

“The ostentative decorations in the mansion were overwhelming.”

3. noun

something that is ostentatious or pretentious

“The ostentative display of wealth was a status symbol in that community.”