S: (adj) fair, just (free from favoritism or self-interest or bias or deception; conforming with established standards or rules) "a fair referee"; "fair deal"; "on a fair footing"; "a fair fight"; "by fair means or foul"
S: (adj) logical (capable of or reflecting the capability for correct and valid reasoning) "a logical mind"
W: (n) reasonableness [Related to: reasonable] (the quality of being plausible or acceptable to a reasonable person) "he questioned the tenability of my claims"
W: (n) reasonableness [Related to: reasonable] (goodness of reason and judgment) "the judiciary is built on the reasonableness of judges"