irrazionale

irrational

adjective eer-rah-tsyoh-NAH-leh Rare

Origin: From Latin irrationalis ('without reason').

Also means

unreasonable

Usage Note

Irrazionale describes a belief, fear, or behaviour that lacks rational basis — una paura irrazionale ('an irrational fear'). In mathematics, un numero irrazionale is an irrational number (like π). The same form serves masculine and feminine singular; plural: irrazionali. Note the double 'r' is held in speech, unlike the single rolled 'r' in razionale.

Examples

"Ha una paura irrazionale dei ragni."

Natural Translation

She has an irrational fear of spiders.

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