Meaning of suppositive

sup•pos•i•tive

Pronunciation: (su-poz'i-tiv), [key]
— adj.
  1. of the nature of or involving supposition; suppositional.
  2. supposititious or false.
  3. expressing or noting supposition, as the words if, granting, or provided.
—n.
  1. a suppositive word.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.