Question

if you write about unpopular or ideas you may turn off readers who disagree with your controversial language opinions directly indirectly meaningful

Explanation:

The first blank needs an adjective similar to "unpopular" to describe "ideas". "Controversial" fits as it means likely to cause public disagreement. The second blank needs a noun that readers can disagree with, and "opinions" is appropriate. The third - blank needs an adverb to describe how readers may be turned off. "Directly" makes sense as it indicates an immediate reaction.

Answer:

controversial; opinions; directly