High Quality Content by WIKIPEDIA articles! Subtext or undertone is content of a book, play, musical work, film, video game, or television series which is not announced explicitly by the characters (or author) but is implicit or becomes something understood by the observer of the work as the production unfolds. Subtext can also refer to the thoughts and motives of the characters which are only covered in an aside. Subtext can also be used to imply controversial subjects without specifically alienating people from the fiction, often through use of metaphor.