Skepticism and Faith
The opposite of skepticism isn't faith or trust. It's confidence. In what? In reason, in one's cognitive faculty, and one's ability to evaluate evidence and arguments to some extent and to learn which experts can be trusted in specialized fields. Skepticism and faith (or dogmatism) are not opposed. It's the radical skeptic, demoralized by his self-confessed ignorance, who might embrace mysticism in search of a ray of hope. Without reason, he's left himself no alternative.