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

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

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.

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

The state or quality of being rational. Compare negative capability. [From Latin rationalis rational, from ratio, -onis reason or reckoning, from reri, ratus to think]

Jan 20, 2026 · Logically sound; not self-contradictory or otherwise absurd. His statements were quite rational.

Definition of Rational. What does Rational mean? Meaning of Rational. Rational synonyms, pronunciation, spelling and more from Free Dictionary.

RATIONAL meaning: 1 : based on facts or reason and not on emotions or feelings; 2 : having the ability to reason or think about things clearly

agreeable to reason; reasonable; sensible: a rational plan for economic development. having or exercising reason, sound judgment, or good sense: a calm and rational negotiator. being in or …

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. The original meaning in English was of …