The antonyms for the word "impressing as" can vary depending on the context in which the word is used. However, some common antonyms include unremarkable, unimpressive, forgettable, mundane, ordinary, and average. These words denote a lack of impact or significance, and are often used to describe objects or experiences that fail to capture one's attention or imagination. In contrast to the term "impressing as", which highlights the ability to make a lasting impression on the viewer or observer, these antonyms suggest a lack of distinction or originality. They serve as a reminder that not everything we encounter in life leaves a powerful impression, and that sometimes it's okay to simply appreciate the ordinary things in life without expecting them to be extraordinary.