Definitions (3)
Related Terms
1. Behavior guided more by conscious reasoning than by experience, and not adversely affected by emotions.
2. Thinking process that employs logical, objective, and systematic methods in reaching a conclusion or solving a problem.
3. Person who is not mentally imbalanced or under the sway of overpowering emotions, can draw logical inferences, and is capable of normal mental process of weighing pros and cons of an action, choice, or decision. Opposite of insane. See also Reasonable.

Use 'rational' in a Sentence

One may consider it a rational decision to walk away from a situation where tempers are rising, rather than to stay and provoke until something regrettable is said or done.
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After eating a large meal and having some take home leftovers, the customer was rational about not throwing the food out and giving it to the homeless man he saw outside.
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In order to make rational decisions, you must be able to calmly assess all relevant information and options to make the most logical choice.
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