The meaning of RATIONAL is having reason or understanding. How to use rational in a sentence.

RATIONAL definition: agreeable to reason; reasonable; sensible. See examples of rational used in a sentence.

RATIONAL definition: 1. based on clear thought and reason: 2. (of a number) that can be expressed as the ratio of two…. Learn more.

Define rational. rational synonyms, rational pronunciation, rational translation, English dictionary definition of rational. adj. 1. Having or exercising the ability to reason.

Rationality is the quality of being guided by or based on reason. In this regard, a person acts rationally if they have a good reason for what they do, or a belief is rational if it is based on …

Rational decisions and thoughts are based on reason rather than on emotion. He's asking you to look at both sides of the case and come to a rational decision.

Definition of rational adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Rationality is the use of knowledge to attain goals, according to Steven Pinker. In this article written for Encyclopædia Britannica, Pinker explains why it’s important to understand how …

Dec 28, 2025 · rational (plural rationals) (mathematics) A rational number: a number that can be expressed as the quotient of two integers. The quotient of two rationals is again a rational.

Rational comes from the Latin word rationalis, meaning reasonable or logical. If you're rational, you do things based on logic, as opposed to impulse or whimsy.