unconfidence noun2 •Absence of confidence; uncertainty; doubt.But feelings of confidence and unconfidence are essential guides to our cognitive efforts. — 2005 •The complement of confidence; the probability that something is not the case.Obviously If P ( Hᵢ / E ) > P ( Hᵢ) then we can say that by evidence E the confidence of H by the expert is increased and at the same time the unconfidence of Hᵢ is decreased. — 1988