Those who views are progressive often meet with formidable impediments when they begin to act.

A. revolutionary

B. retrograde

C. brave

D. outmoded

Answer: Option B

Solution(By Examveda Team)

progressive : increasing; growing.
revolutionary : involving or causing a complete or dramatic change.
retrograde : directed or moving backwards.
brave : ready to face and endure danger or pain; showing courage.
outmoded: old-fashioned.


Antonym of progressive is retrograde