Dictionary
con•jec•tur•al
Pronunciation: (kun-jek'chur-ul), [key]—
adj.
1. of, of the nature of, or involving conjecture; problematical:
Theories about the extinction of dinosaurs are highly conjectural.
2. given to making conjectures:
a conjectural thinker. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.