rationality

[rash-uh-nal-i-tee]

noun

plural

rationalities 

1. the state or quality of being rational.

2. the possession of reason.

3. agreeableness to reason; reasonableness.

4. the exercise of reason.

5. a reasonable view, practice, etc.

Other Word Forms

• antirationality noun
• nonrationality noun

Word History and Origins

Origin of rationality¹

First recorded in 1560–70, rationality is from the Late Latin word ratiōnālitās reasonableness. See rational, -ity

Example Sentences

While his solutions were sometimes controversial, his core insight about the conflict between individual rationality and collective welfare has become fundamental to understanding everything from environmental policy to economic regulation.

From Salon

They war between rationality and heart, ego and id.

From Salon

“Love eludes common sense and rationality a lot so he’s just trying to be the level-headed one through and through,” says Mazino.

From Los Angeles Times

It requires only rationality— an acceptable policy goal combined with rational actions to achieve that goal.

From Salon

“As soon as they feel their rationality isn’t working, they resort to using their power to threaten you.”

From Los Angeles Times

Related Words

• coherence 
• good sense www.thesaurus.com
• sanity