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- Dictionaryirrational/ɪˈraʃən(ə)l/
adjective
- 1. not logical or reasonable: "irrational feelings of hostility"
- 2. (of a number, quantity, or expression) not expressible as a ratio of two integers, and having an infinite and non-recurring expansion when expressed as a decimal. Examples of irrational numbers are the number π and the square root of 2.
noun
- 1. an irrational number or quantity; a surd.
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The meaning of IRRATIONAL is not rational. How to use irrational in a sentence. not rational: such as; lacking usual or normal mental clarity or coherence; not endowed with reason or understanding…
Learn the definition of irrational as an adjective that means not using reason or clear thinking, or not based on logic. Find translations of irrational in Chinese, Spanish, Portuguese and more languages.
Usually you use irrational to describe ideas and thoughts that are not based on reason, although emotions and behavior can be irrational too if they don't seem reasonable. Do you jump onto a chair and scream when you see a mouse? If so, you have an irrational fear of mice, or musophobia.
Learn the meaning of irrational as an adjective to describe illogical or unreasonable behaviour, feelings, or numbers. See synonyms, pronunciation, and usage examples from various sources.
Irrational means without reason, illogical, or incapable of being expressed as a ratio of integers. Learn the origin, synonyms, and usage of irrational in mathematics, logic, and verse.
Irrational means not consistent with or using reason, or not expressible as a ratio of integers. Learn the different meanings and uses of irrational in mathematics, poetry, and psychology, with synonyms and translations.
Learn the meaning, pronunciation and usage of the adjective irrational, which means not based on clear logical thought. See synonyms, examples and word origin.
