1) Concept in ethics 2) Concept in metaphysics 3) French word used in English 4) Philosophical logic 5) Reason 6) Reasonableness 7) Saneness 8) Sanity 1) Consistency 2) Intellect 3) Logic 4) Lucidness 5) Rationalness 6) Reasonableness 7) Saneness 8) Sanity 9) Sense 10) Senses 11) Sensibleness 
Rationality is the quality or state of being reasonable, based on facts or reason. Rationality implies the conformity of one`s beliefs with one`s reasons to believe, or of one`s actions with one`s reasons for action. `Rationality` has different specialized meanings in economics, sociology, psychology, evolutionary biology and political scien...
• (n.) The quality or state of being rational; agreement with reason; possession of reason; due exercise of reason; reasonableness.
deliberate, matter-of-fact calculation of the most efficient means to accomplish a particular goal
Ra`tion·al'i·ty (-ăl'ĭ*tȳ; 277) noun ; plural -ties (- tĭz). [ French rationalité , or Latin rationalitas .] The quality or state of being rational; agreement with reason; possession of reason; due exercise of reason; reasonableness. « When...
[n] - the state of having good sense and sound judgment 2. [n] - the quality of being consistent with or based on logic
rationalness noun the quality of being consistent with or based on logic