Meanings of suppositional in English

It was all very puzzling, and what little suppositional evidence there was, was conflicting.

All at once it came to him what a fool he was to worry over this phase which was wholly suppositional.

Bunny notices the frosted, achromatic nail polish she is wearing corresponds in a suppositional way with the non-colour of her eyes.

To test this hypothesis, a benthic macroinvertebrate data set based on recent fifteen-year studies in China was built for suppositional plot analyses.

"An assassination?" He was making great suppositional leaps, or else I was.