rationality Meaning, Definition & Usage

  1. noun the state of having good sense and sound judgment
    reason; reasonableness.
    • his rationality may have been impaired
    • he had to rely less on reason than on rousing their emotions
  2. noun the quality of being consistent with or based on logic


Ra`tion*al"i*ty noun
F. rationalité, or L. rationalitas.
plural -ties
  1. The quality or state of being rational; agreement with reason; possession of reason; due exercise of reason; reasonableness.
    When God has made rationality the common portion of mankind, how came it to be thy inclosure? Gov. of Tongue.
    Well-directed intentions, whose rationalities will never bear a rigid examination. Sir T. Browne.

Webster 1913