SUPPOSITIONAL
Sup`po*si"tion*al, a.

Defn: Resting on supposition; hypothetical; conjectural; supposed.
South.

SUPPOSITITIOUS
Sup*pos`i*ti"tious, a. Etym: [L. suppositicus. See Supposition.]

1. Fraudulently substituted for something else; not being what is purports to be; not genuine; spurious; counterfeit; as, a supposititious child; a supposititious writing. Bacon.

2. Suppositional; hypothetical. [R.] Woodward.
— Sup*pos`i*ti"tious*ly, adv.
— Sup*pos`i*ti"tious*ness, n.

SUPPOSITIVE
Sup*pos"i*tive, a. Etym: [Cf. F. suppositif.]

Defn: Including or implying supposition, or hypothesis; supposed.
— Sup*pos"i*tive*ly, adv. Hammond.

SUPPOSITIVE
Sup*pos"i*tive, n.

Defn: A word denoting or implying supposition, as the words if, granting, provided, etc. Harris.

SUPPOSITOR
Sup*pos"i*tor, n. (Med.)