sciolism

noun1

1. •
   (disapproving, old-fashioned) The practice of expressing opinions on something which one knows only superficially or has little real understanding of; also, shallow or superficial knowledge; (countable) an instance of this.

   • Indeed, I sometimes incline to hope that infidelity is arrived at its highest pitch, and that sciolism may advance into found knowledge and saving faith […]. — 1795