is a type of (narrower)
the state of a person's cognitive processes
is an attribute of
having or feeling no doubt or uncertainty; confident and assured
"felt certain of success"; "was sure (or certain) she had seen it"; "was very sure in his beliefs"; "sure of her friends"
is an attribute of
lacking or indicating lack of confidence or assurance
"uncertain of his convictions"; "unsure of himself and his future"; "moving with uncertain (or unsure) steps"; "an uncertain smile"; "touched the ornaments with uncertain fingers"