Expanding one's horizons is the perfect antonym for the phrase "cramped one's style". The latter expression refers to suppressing someone's freedom or creativity, while the former signifies broadening one's perspective and enhancing the ability to think creatively. Expanding one's horizons encourages exploration of new ideas, experiences, and cultures. It allows one to break free from the constraints of their circumstances and adopt new perspectives. When someone is expanding their horizons, they are growing and reaching beyond their comfort zone, instead of staying confined. This approach brings liberation, elevating the senses, and enabling people to tap into their full potential.