Surreal was not used in print until 1937.
Which is really unfortunate, because it would be a comment par excellence* on a particular moment of serendipity in my story. However, the heroine is the one thinking the situation is bizarre (and beyond), and she obviously could not use the word “surreal” since she predates it by over a century. Thanks, OED!
*While we’re on the subject, please take a moment to bask in the glory that is the OED’s definition of par excellence, because, truly, their choice of phrasing defines the term not only by meaning but also by example: “By virtue of special excellence or manifest superiority.”