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.

Definition of rational adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and 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. It can be very hard to think …

Nov 4, 2025 · For “rational,” the words and traits that had strongest association could be categorized into two general categories. The first included words that indicated logic, …

There are 17 meanings listed in OED's entry for the word rational, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

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