arbitrary(comparative more arbitrary, superlative most arbitrary)(usually of a decision) Based on individual discretion or judgment; not based on any objective distinction, perhaps even made at random.Benjamin Franklin's designation of "positive" and "negative" to different charges was arbitrary.The decision to use 18 years as the legal age of adulthood was arbitrary, as both age 17 and 19 were reasonable alternatives.Determined by impulse rather than reason; heavy-handed. (mathematics) Any, out of all that are possible. The equation is true for an arbitrary value of x.Determined by independent arbiter.(linguistics) Not representative or symbolic; not iconic.Anything arbitrary, such as an arithmetical value or a feeatonement(countable and uncountable, plural atonements)Making amends to restore a damaged relationship; expiation. (theology, often with capitalized initial) The reconciliation of God and mankind through the death of Jesus.(archaic) Reconciliation; restoration of friendly relations; concord.

 arbitrary(comparative more arbitrary, superlative most arbitrary)(usually of a decision) Based on individual discretion or judgment; not based on any objective distinction, perhaps even made at random.Benjamin Franklin's designation of "positive" and "negative" to different charges was arbitrary.The decision to use 18 years as the legal age of adulthood was arbitrary, as both age 17 and 19 were reasonable alternatives.Determined by impulse rather than reason; heavy-handed. (mathematics) Any, out of all that are possible.

The equation is true for an arbitrary value of x.Determined by independent arbiter.(linguistics) Not representative or symbolic; not iconic.Anything arbitrary, such as an arithmetical value or a feeatonement(countable and uncountable, plural atonements)Making amends to restore a damaged relationship; expiation. (theology, often with capitalized initial) The reconciliation of God and mankind through the death of Jesus.(archaic) Reconciliation; restoration of friendly relations; concord.