Origin: Latin suffix -al
Conjectural has 3 different meanings across 1 category:
Something that is conjectural; a conjecture.
based primarily on surmise rather than adequate evidence
"theories about the extinction of dinosaurs are still highly conjectural"
"the supposed reason for his absence"
"suppositious reconstructions of dead languages"
"hypothetical situation"
In the nature of a conjecture, or based on a conjecture.