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rational - definition and synonyms


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adjective rational pronunciation in British English /ˈræʃ(ə)nəl/
  1. 1
    based on sensible practical reasons rather than emotions

    There didn’t seem to be any rational explanation for his actions.

    Your choice was perfectly rational under the circumstances.

    a rational approach to the problem

  2. 2
    thinking about what you do in a calm way, and making sensible and intelligent decisions

    Let’s try to discuss this like rational human beings.

    Calm down and try to be rational.

derived word


 rational pronunciation in British English /ˌræʃəˈnæləti/ noun [uncountable]

I hope we can introduce some rationality into these debates.



used to describe something which is done more carefully and over a longer period of time …

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the practice of giving birth in the presence of several friends and relatives

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