rationality

noun

ra·​tio·​nal·​i·​ty ˌra-shə-ˈna-lə-tē 

plural rationalities

1

: the quality or state of being rational

2

: the quality or state of being agreeable to reason : reasonableness

3

: a rational opinion, belief, or practice

—usually used in plural

Examples of rationality in a Sentence

Recent Examples on the Web

The Progressive ideals of the age, which fixated on science, rationality and quantification, were pervasive, and the nascent food-marketing industry saw a possible bonanza. —Michelle Stacey, Smithsonian Magazine, 14 May 2024

Lean Into Aristotle’s Age-Old Strategies Since the days of Aristotle, three strategies have been used by leaders to lead their teams: ethos (credibility and ethics), logos (rationality and logic) and pathos (emotions and energy). —Expert Panel®, Forbes, 27 Mar. 2024

Word History

First Known Use

1628, in the meaning defined at sense 1

Phrases Containing rationality

• hyper-rationality

Kids Definition

rationality

noun

ra·​tio·​nal·​i·​ty ˌrash-ə-ˈnal-ət-ē 

: the quality or state of being rational

Medical Definition

rationality

noun

ra·​tio·​nal·​i·​ty ˌrash-ə-ˈnal-ət-ē 

plural rationalities

1

: the quality or state of being rational

2

: the quality or state of being agreeable to reason