CONJECTURE n. 3 definitions
An opinion, or judgment, formed on defective or presumptive evidence; probable inference; surmise; guess; suspicion. He [Herodotus] would thus have corrected his first loose conjecture by a real study of nature. Whewell. Conjectures, fancies, built on nothing firm. Milton.
CONSISTENCE; CONSISTENCY n.
pondence; as, the consistency of laws, regulations, or judicial decisions; consistency of opinions; consistency of conduct or of character. That consistency of behavior whereby he inflexibly pursues those measures which appear the most just. Addison. Consistency, thou art a jewel. Popular Saying.