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## English adjective | |||

1. | irrational not consistent with or using reason | ||

Samples | Irrational fears. Irrational animals. | ||

Similar | blind, nonrational, reasonless, superstitious, unreasoning | ||

See also | illogical, incoherent, unlogical, unreasonable | ||

Antonyms | rational | ||

2. | irrational real but not expressible as the quotient of two integers | ||

Samples | Irrational numbers. | ||

Domain category | math, mathematics, maths | ||

Antonyms | rational | ||

## English noun | |||

1. | irrational (quantity) a real number that cannot be expressed as a rational number | ||

Synonyms | irrational number | ||

Broader (hypernym) | real, real number | ||

Narrower (hyponym) | algebraic number, transcendental number | ||

Based on WordNet 3.0 copyright © Princeton University.

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2018 onlineordbog.dk