Words That Rhyme With "Postpositive" :

3 syllables:

causative, positive

4 syllables:

accusative, acquisitive, appositive, cognoscitive, compositive, dispositive, expositive, inquisitive, nonpositive, oppositive, prepositive, suppositive, transpositive

5 syllables:

Autopositive, contrapositive

6 syllables:

electropositive