Arbitrary standards can be problematic because they lack objectivity and fairness. That's why it's essential to use synonyms for the word "arbitrary standard" to convey the idea of impartiality and reliability. One of the possible synonyms is "objective benchmark," which implies a clear and measurable criterion to evaluate something. Another option is "impartial measure," which stresses neutrality and detachment. For more formal contexts, "rigorous criterion" or "stringent guideline" can be suitable alternatives that highlight the need for precise and demanding standards. Ultimately, using the right synonyms for "arbitrary standard" can improve communication and ensure that everyone understands the expectations and requirements.