The word "un-canniest" refers to something that is not eerie, mysterious or spooky. Its antonyms include ordinary, mundane, commonplace, and unremarkable. These words refer to things that are plain, usual, and lacking any interesting or extraordinary qualities that would make them seem unusual or supernatural. While the word "uncanny" implies a sense of eeriness or strangeness, its opposite suggests a lack of such qualities. Therefore, the antonyms of "un-canniest" can be used to describe things that are familiar, typical, and have no supernatural or paranormal connotations associated with them.