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Noun: rationality  ,ra-shu'na-lu-tee
  1. The state of having good sense and sound judgment
    "his rationality may have been impaired";
    - reason, reasonableness
     
  2. The quality of being consistent with or based on logic
    - rationalness

Derived forms: rationalities

Type of: logicality, logicalness, saneness, sanity

Encyclopedia: Rationality