detrimental factor; negative factor
Used in analysis, planning, or evaluation to refer to a factor that works against a desired outcome. Often contrasted with プラス要因.
See also: プラス要因
A detrimental factor for this project is the lack of budget.
To succeed, we need to reduce negative factors as much as possible.
Compound of マイナス (minus, negative) and 要因 (factor, cause).