Antonyms for "model after" can include words like deviate, diverge, differ, oppose, and resist. When we choose to model after something, we are looking for something to emulate or follow as an example. However, when we deviate from a previous model, we are departing from the original or choosing to take a different path. Diverging can also mean to follow a different model altogether, while opposing and resisting implies taking a stance against a previous model or refusing to follow it altogether. These antonyms highlight the importance of critical thinking and individuality in decision-making, as well as the importance of maintaining our own sense of identity amidst influences from others.