The antonyms for the word 'non-realistic' can be numerous, and they all depend on the context of usage. If it's related to art or literature, antonyms could include 'realistic,' 'authentic,' 'true to life,' or 'factual.' In other cases, antonyms could be 'logical,' 'sensible,' 'pragmatic,' or 'rational.' For practical purposes, antonyms to 'non-realistic' could be 'conventional,' 'traditional,' 'ordinary,' or 'typical.' Whatever the context, the antonyms would always indicate something opposite to what is represented by 'non-realistic,' i.e., inauthentic, impractical or fake. Understanding the antonyms can provide a better understanding of the correct usage of the word.