The antonyms for the word "most lookalike" are unique, distinct, different, original, and individualistic. These terms describe an object, person, or idea that stands out from the rest, possessing characteristics and qualities that set them apart. When something is unique, it is one-of-a-kind, impossible to replicate or duplicate. On the other hand, distinct refers to being easily recognizable and different from others. Different is a term used to describe something that has little in common with others, while original refers to something that came into existence first, with no copies or similarities. Lastly, individualistic describes an object or person that expresses their unique characteristics and traits.