having or feeling no doubt or uncertainty; confident and assured
certain to occur; destined or inevitable
impossible to doubt or dispute
exercising or taking care great enough to bring assurance
reliable in operation or effect
(of persons) worthy of trust or confidence
definitely or positively (`sure' is sometimes used informally for `surely')
certain not to fail
infallible or unfailing
physically secure or dependable
not established or confirmed
subject to change
lacking or indicating lack of confidence or assurance
ambiguous (especially in the negative)
not certain to occur; not inevitable
not consistent or dependable
not established beyond doubt; still undecided or unknown
