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  1. RATIONAL Definition & Meaning - Merriam-Webster

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

  2. RATIONAL | definition in the Cambridge English Dictionary

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

  3. RATIONAL Definition & Meaning | Dictionary.com

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

  4. RATIONAL definition and meaning | Collins English Dictionary

    A rational person is someone who is sensible and is able to make decisions based on intelligent thinking rather than on emotion. Did he come across as a sane rational person? Rachel looked …

  5. Rational - definition of rational by The Free Dictionary

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

  6. rational adjective - Definition, pictures, pronunciation and ...

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

  7. rational - Wiktionary, the free dictionary

    Sep 22, 2025 · rational (plural rationals) (mathematics) A rational number: a number that can be expressed as the quotient of two integers.