Source : Webster's Revised Unabridged Dictionary (1913)

Literalism \Lit"er*al*ism\, n.
   1. That which accords with the letter; a mode of interpreting
      literally; adherence to the letter.

   2. (Fine Arts) The tendency or disposition to represent
      objects faithfully, without abstraction,
      conventionalities, or idealization.

Source : WordNet®

literalism
     n 1: the doctrine of realistic (literal) portrayal in art or
          literature
     2: a disposition to interpret statements in their literal sense