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n. pl. ra·tion·al·i·ties
1. The quality or condition of being rational.
2. A rational belief or practice.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -ties
1. the state or quality of being rational or logical
2. the possession or utilization of reason or logic
3. a reasonable or logical opinion
4. (Economics) economics the assumption that an individual will compare all possible combinations of goods and their prices when making purchases
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌræʃ əˈnæl ɪ ti)

n., pl. -ties.
1. the state or quality of being rational.
2. the possession or exercise of reason.
3. agreeableness to reason.
4. a reasonable view, practice, etc.
[1560–70; < Late Latin ratiōnālitās reasonableness. See rational, -ity]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rationality - 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"
saneness, sanity - normal or sound powers of mind
2.rationality - the quality of being consistent with or based on logic
logicality, logicalness - correct and valid reasoning
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


1. What is sound or reasonable:
Idiom: rhyme or reason.
2. Exact, valid, and rational reasoning:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


[ˌræʃəˈnælɪtɪ] Nracionalidad f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


n (of person, action, thinking)Vernünftigkeit f, → Rationalität f; (of activity, solution)Vernünftigkeit f; (Med) → klarer Verstand
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


(ˈraʃənl) adjective
1. able to think, reason and judge etc. Man is a rational animal.
2. sensible; reasonable; logical; not (over-) influenced by emotions etc. There must be a rational explanation for those strange noises
ˈrationally adverb
ˌrationˈality noun
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in periodicals archive ?
One might even hypothesize that the aggregation of differential bounded rationalities of various agents at the sub-state level produces some sort of perfect rationality of the state in international affairs.
The two rationalities play out in experimental studies: "the experimenter applies the tools of constructivist reason to solve for the benchmark CE (competitive equilibrium), but in repeat play this 'solution' emerges from the spontaneous order created by the subjects trading under the rules of the double-auction market institution." (17) Similar patterns of convergence are found in other experiments with more than one simultaneous interdependent market.
Drawing on the notion of ethical problematization in the situated global assemblages (Ong and Collier 2005), it is an attempt to explore the ethical rationalities associated with overseas school choices.
Medieval Religious Rationalities: A Weberian Analysis, by D.
Given the relative success of the scientific enterprise it would seem that particular rather universal rationalities have been selected for.
I examine the concept of evidence and Lin's (2003) competing rationalities within the context of Aboriginal and Torres Strait Islander health.
In Making a Social Body: British Cultural Formation 1830-1864 (1995), Mary Poovey drew inspiration from Foucault's writings on the origins of the human sciences and the formation of modern rationalities. For Foucault, as we have seen, the emergence of objective, statistical knowledge of economy and society from the eighteenth century was an important political development.
If the criteria for morality are tradition-dependent, MacIntyre appears to fall victim to relativism; for, just as there are many cultures, so there are many rationalities, each dependent upon the "experiences of particular social communities." Lutz disagrees with this conclusion.
These various rationalities are not merely self-enclosed, however; rabbinic thinking can import patterns of rationality learned from Greece, and vice-versa.
A conference on 'The encounter between rationalities', jointly organized by the Centre Africain des Hautes Etudes, the UNESCO network 'Paths of Thought' and the International Council for Philosophy and Humanistic Studies (ICPHS), took place there on the occasion of its 26th General Meeting.