"No imitation" has several synonyms that can be used interchangeably in different contexts. One such word is "original," which means that something is completely new and has never been seen or done before. Another synonym is "authentic," which implies that something is genuine and true, without any falsification or copying. "Unique" is another synonym that describes something that is one-of-a-kind, distinct, and cannot be replicated. "Genuine" is also a synonym that describes something that is sincere, real and not copied or faked. These words can be used in various settings, be it in art, music, literature, or anything else where authenticity and originality matter.