reasonableness in WordNet English dictionary

1. the property of being moderate in price or expenditures
   "the store is famous for the reasonableness of its prices"; "the modestness of the living standards here becomes obvious immediately"
   reasonableness  moderateness  modestness 
   
2. the state of having good sense and sound judgment
   "his rationality may have been impaired"; "he had to rely less on reason than on rousing their emotions"
   rationality  reason  reasonableness 
   
3. goodness of reason and judgment
   "the judiciary is built on the reasonableness of judges"
   reasonableness 
   
4. moderation in expectations
   "without greater reasonableness by both parties we will never settle this matter!"
   reasonableness 
   
5. the quality of being plausible or acceptable to a reasonable person
   "he questioned the tenability of my claims"
   reasonableness  tenability  tenableness