Open English Wordnet
Adjectives
(s)nescient, unbelievingholding that only material phenomena can be known and knowledge of spiritual matters or ultimate causes is impossible
(s)ignorant, nescient, unlearned, unlettereduneducated 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”