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

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

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. Mary was able to short-circuit …

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

Dec 28, 2025 · Adjective rational (comparative more rational, superlative most rational) Capable of reasoning.

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 …

In mathematics, a rational number is a number that can be expressed as the quotient or fraction ⁠ ⁠ of two integers, a numerator p and a nonzero denominator q. [1] For example, ⁠ ⁠ is a rational …

rational, adj. & adv. meanings, etymology, pronunciation and more in the Oxford English Dictionary