Obscurantism(noun)
The practice of deliberately preventing somebody from understanding or discovering something.
Hindi meaning:प्रगतिविरोध
Synonyms: Backlash, Retreat, Regression, Preservation
Antonyms: Encourage, Praise, Motivate
Example: Religious prejudice and scientific obscurantism have been closely entangled throughout the whole history of this debate.
Trick to remember: Obscurantism bole toh obscure krna. 
