Pronunciation: [ os-ten-tey-shuhs ]
1: characterized by or given to pretentious or conspicuous show in an attempt to impress others
2: (of actions, manner, qualities exhibited, etc.) intended to attract notice
Etymology: from ostentat(ion) + -ious
Example 1: She was the kind of person who bought intellectual books to ostentatiously display and impress her company.
Example 2: Her bold choices in fashion were very ostentatious.