reductive

Reductive things oversimplify information or leave out important details. A reductive argument won't win a debate, because it tries to make a complex issue much too simple.

Your friend may recommend reading the "CliffsNotes" version of "Moby Dick," instead of the novel itself — but if you do, you'll only get a reductive summary of the plot and themes, instead of a long, nuanced book. Reductive shares a root with reduce, or "make smaller," the Latin reducere, "bring back." The earliest meaning of reductive was "that brings back."

Definitions of reductive
1

adj characterized by or causing diminution or curtailment

“"their views of life were reductive and depreciatory" - R.H.Rovere”
Synonyms:
subtractive
constituting or involving subtraction

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