holding that only material phenomena can be known and
knowledge of spiritual matters or ultimate causes is impossible Synonym(s):nescient, unbelieving
uneducated in general; lacking knowledge or sophistication; "an ignorant man"; "nescient of contemporary literature"; "an unlearned group incapable of understanding complex issues"; "exhibiting contempt for his unlettered companions" Synonym(s):ignorant, nescient, unlearned, unlettered