Wiktionary
conjecturably
adv. In a conjecturable manner
Usage examples of "conjecturably".
She said nothing, and after a glance toward the regions where Penelope might conjecturably be lingering, he held aside the portiere for the Laphams to pass, and entered the room with them.
In states of dubitation under impelling elements, the instinct pointing to courageous action is, besides the manlier, conjecturably the right one.