obscurant

noun

1. a person who strives to prevent the increase and spread of knowledge.
2. a person who obscures.

adjective

3. pertaining to or characteristic of obscurants.
4. tending to make obscure.

noun

1. an opposer of reform and enlightenment

adjective

2. of or relating to an obscurant
3. causing obscurity

adj.1878, from Latin obscurantem (nominative obscurans), present participle of obscurare (see obscure (v.)).