Irrationality is the opposite of rationality. Irrationality is when you act in a way that is not based on reason or logic.
She was behaving in an irrational way, and she was getting in trouble for it.
The decision to go to war was based on irrational reasons.
noun
the state of being irrational; lacking powers of understanding
Synonyms:
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The removal of the image was irrational.
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Pogonophobia is the irrational phobia of beards.
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In The temple, it is irrational for the lady to keep the skeleton.
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The better the arguments, the more irrational they become.
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They base this on the observed fact of the irrational voter.
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In times of insecurity, of worldwide menace, the irrational booms.
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Firstly, that the people in the group are all irrational lunatics.
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The stranger to the costumes of cities is just and irrational and unsocial.
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Thus, science moves from the rational to the irrational.
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As seen in the video, the response is clearly highly emotional and irrational.