noun an opinion, or judgment, formed on defective or presumptive evidence; probable inference; surmise; guess; suspicion.
2. conjecture ·vt to arrive at by conjecture; to infer on slight evidence; to surmise; to guess; to form, at random, opinions concerning.
3. conjecture ·vi to make conjectures; to surmise; to guess; to infer; to form an opinion; to imagine.