A mistake, weakness, or imperfection in a plan, argument, or system.
“Critics identify a major flaw in the government's cost estimates.”
“The plan's biggest flaw is that it ignores rural communities entirely.”
In Part 4, one speaker may point out a flaw in the opposing argument to strengthen their own position. This word usually signals a stronger criticism than 'limitation,' so note the intensity when comparing viewpoints.
Synonyms: weakness, defect, shortcoming