Final answer:
Clarity is not a characteristic of unjust laws, while lack of fairness, discrimination, and oppression are. Discrimination denotes an unjust law's tendency to cause unequal treatment based on certain attributes.
Step-by-step explanation:
Boss described unjust laws as having several characteristics. The characteristic that is not one of these is Clarity. Unjust laws typically are characterized by a lack of fairness, active discrimination, and are often a means of oppression. An unjust law would lack equality in treatment and outcomes for different groups of people. However, the clarity of a law does not inherently determine its justness; a clear law can be just or unjust. Discrimination is a prime element of an unjust law as it represents the unfair and unequal treatment of individuals based on characteristics such as race, gender, or ethnicity.