1. (

• rationality ,
• reason ,
• reasonableness

) 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" ;

2. (

• reasonableness

) goodness of reason and judgment; "the judiciary is built on the reasonableness of judges" ;

3. (

• reasonableness ,
• moderateness ,
• modestness

) 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" ;

4. (

• reasonableness ,

) moderation in expectations; "without greater reasonableness by both parties we will never settle this matter!" ;

5. (

• reasonableness ,
• tenability ,
• tenableness

) the quality of being plausible or acceptable to a reasonable person; "he questioned the tenability of my claims" ;