Not certain; unsure.
Conſider man without the protection and conduct of a ſuperior Being, and he is ſecure of nothing that he enjoys in this world, and uncertain of every thing that he hopes for.
Not known for certain; questionable.
Tomorrow's weather is uncertain.
Not yet determined; undecided.
Something uncertain.
Thinking about the uncertain refines our perception of the certain, and generally this takes place in a framework in which the uncertain is the future and the certain is the present.
From Middle English uncerteyn. By surface analysis, un- + certain.
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