Definify.com
Webster 1913 Edition
Suppositive
Sup-pos′i-tive
,Adj.
 [Cf. F. 
suppositif
.] Including or implying supposition, or hypothesis; supposed. 
– Sup-pos′i-tive-ly
, adv.
 Hammond.
 Sup-pos′i-tive
,Noun.
 A word denoting or implying supposition, as the words if, granting, provided, etc. 
Harris.
 Webster 1828 Edition
Suppositive
SUPPOS'ITIVE
,Adj.
  SUPPOS'ITIVE
,Noun.
 Definition 2025
suppositive
suppositive
English
Noun
suppositive (plural suppositives)
-  A word denoting or implying supposition.
- The words "if", "granting", and "provided" are suppositives.
 - (Can we find and add a quotation of Harris to this entry?)
 
 
Adjective
suppositive (comparative more suppositive, superlative most suppositive)
-  Including or implying supposition, or hypothesis; supposed.
- (Can we find and add a quotation of Hammond to this entry?)
 
 
Derived terms
- suppositively