Obscurantist (noun)

1. A person who opposes enlightenment and actively seeks to prevent the spread of knowledge and understanding.
2. A person who is intentionally vague or unclear in their explanations or teachings.

Origin:

From latin obscurantem meaning 'keeping in the dark', derived from obscurare meaning 'to darken'.

Examples:

1. The obscurantist priest refused to teach the children about science and only taught them scripture.
2. The politicians were accused of being obscurantists when they refused to disclose information to the public.
3. The obscurantist society was against the spread of new ideas and knowledge.
4. The obscurantist's teachings were often unclear and confusing.
5. The scientist accused the obscurantists of spreading false information to keep people from learning the truth.