Obscurantism (noun)

1. Opposition to the spread of knowledge, especially in matters regarded as controversial or subversive.
2. The practice of deliberately preventing the spread of knowledge or the truth.

Origin:

From the french word obscurantisme, meaning "darkening" or "obscuring", from obscurant, meaning "darkening" or "obscuring".

Examples:

1. The government's censorship of the press is an example of obscurantism.
2. The religious doctrine's obscurantism was responsible for the suppression of scientific research.
3. The obscurantism of the ruling party was evident in their efforts to control the education system.
4. The obscurantism of the medieval church led to the suppression of scientific discoveries.
5. The obscurantism of the regime was evident in their efforts to control the media and suppress dissent.