With ostentation is a phrase used to describe someone who displays something in an exaggerated or showy manner. There are several synonyms for this phrase, including flaunt, show off, parade, exhibit, and brandish. These words all convey the idea of displaying something in a conspicuous way and drawing attention to oneself. Other synonyms for with ostentation include swagger, strut, and posture, which suggest a confident and arrogant mannerism. Using these words in place of with ostentation can add some variety and depth to your writing, helping to convey a clearer image of the person or object being described.