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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.


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


(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]
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


1. What is sound or reasonable:
Idiom: rhyme or reason.
2. Exact, valid, and rational reasoning:


[ˌræʃəˈnælɪtɪ] Nracionalidad f


n (of person, action, thinking)Vernünftigkeit f, → Rationalität f; (of activity, solution)Vernünftigkeit f; (Med) → klarer Verstand


(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
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.
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 and ordinary life against existing views, generalizations are abounding and relentless.
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.
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.
These various rationalities are not merely self-enclosed, however; rabbinic thinking can import patterns of rationality learned from Greece, and vice-versa.
Sjostrand prefers to use the second method and dedicates the rest of the chapter to elaborating the idea of 'multi-rationality', assuming that there are several kinds of rationalities related to different rationales.