There are several synonyms for the phrase "excite curiosity," including pique, stimulate, inflame, arouse, and incite. Pique implies a sudden interest or desire for something, often due to something unexpected or mysterious. Stimulate suggests a more gradual building of interest or intrigue. Inflame implies a stronger, passionate interest, often due to something controversial or provocative. Arouse suggests a visceral, emotional response to something that captures one's attention. Lastly, incite implies a deliberate or intentional effort to spark interest or curiosity. No matter which synonym is used, all describe the act of inspiring wonder or interest in someone or something.