English

irrational

ɪˈræʃən(ə)l, ɪˈræʃ.ən.əl, ɪˈɹæʃ.(ə.)nəl
Meaning: not logical or reasonable
Part of Speech: Adjective Alternative Readings: ɪˈræʃ.ən.əl, ɪˈɹæʃ.(ə.)nəl

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Example

His fear of spiders was completely irrational, but he couldn't help it.
His fear of spiders was completely irrational, but he couldn't help it.

Usage Notes

Used to describe thoughts, feelings, or behavior that is not based on reason or clear thinking.

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