There are several synonyms that can be used instead of "impressed with" in a sentence. For example, "astonished by" can be used to express a sense of amazement or astonishment about something. "Enthralled by" can be used to denote fascination and captivation. "Captivated by," "intrigued by," and "mesmerized by" can be used to describe feelings of fascination and attraction towards something. "Charmed by" can depict a sense of attraction and delight. "Moved by" can evoke a sense of emotional connection and empathy. "Inspired by" can be used to show how something motivates and inspires one to act. All of these synonyms can be used interchangeably with "impressed with" to convey similar meanings.