irrational
Not rational; unfounded, nonsensical or wrong-headed.
Example
“an irrational decision”
Other meanings
Of a real number, that cannot be written as the ratio of two integers.
Related words
- irrationalism
- irrationalist
- irrationalistic
- irrationally
- irrationalness
- nonirrational
- irrationality
- irrationalization
- irrationalize
- irrational number
Example sentences
Word history
From Latin "irratiōnālis".
Where this comes from
This definition is adapted from “irrational” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.