“+ adjective
Etymology: Middle English, from un- (I) + sure
1. obsolete
a. : not safe from danger or mishap : insecure
b. : lacking in security or safety : dangerous , unsafe
2.
a. : lacking confidence or assurance : uncertain
approached their … problems unprepared, unsure , inexperienced — R.E.Danielson
a young man … unsure of himself and of his future — L.A.G.Strong
b. : not having certain knowledge
was still unsure whether they were human or not — J.D.Beresford
— often used with of
unsure of public support — Paul Rosenfield
is unsure of the results of his calculations
c. : marked by lack of confidence, assurance, or certainty
his memory was curiously unsure — H.G.Wells
moving with unsure steps
the place of either manifestation in a cultural sequence remains unsure — A.L.Kroeber
3.
a. : not steadfast or stable : contingent , precarious
the unsure state of our existence
b. archaic : of doubtful or uncertain prospect
4. : not reliable : untrustworthy
an unsure deceitful man