noncompositional

non- +‎ compositional

noncompositional (not comparable)

1. Alternative form of non-compositional

   Antonym: compositional

   • James Myers, Wordhood and Disyllabicity in Chinese:

     To cite a textbook example, white house and White House are both written with internal spaces, but the first is argued to be a phrase because it is semantically compositional and has phrase-final stress, while the latter is argued to be a word because it has noncompositional semantics and compound-initial stress.