Compare unsure with other words:
unsure vs. usure
ensure vs. unsure
unpure vs. unsure
unsure vs. vague
unsure vs. unsured
insure vs. unsure
unsure vs. untrustful
suspicious vs. unsure
unclear vs. unsure
mobile vs. unsure
insecure vs. unsure
ambivalent vs. unsure
agnostic vs. unsure
precarious vs. unsure
uncertain vs. unsure
unstable vs. unsure
irresolute vs. unsure
positive vs. unsure
nonplussed vs. unsure