irrational
/ɪˈɹæʃ.(ə.)nəl/
Word Rarity
Rare
Frequency: 3.56 in modern English
10
Scrabble Score
10
Letters
4
Syllables
7
Unique Chars
Meaning
adj
Not rational; unfounded, nonsensical or wrong-headed.
adj
Of a real number, that cannot be written as the ratio of two integers.
noun
A real number that can not be expressed as the quotient of two integers, an irrational number.
Example Sentences
- "an irrational decision"
- "July 18, 2012, Scott Tobias, AV Club The Dark Knight Riseshttp://www.avclub.com/articles/the-dark-knight-rises-review-batman,82624/ Where the Joker preys on our fears of random, irrational acts of terror, Bane has an all-consuming, dictatorial agenda that’s more stable and permanent, a New World Order that’s been planned out with the precision of a military coup."
- "The number π is irrational."
- "The square root of 2, which was the first irrational to be discovered, was known to the early Pythagoreans, and ingenious methods of approximating to its value were discovered."
Etymology
From Latin irratiōnālis, from ir- + ratiōnālis.
Origin
- Source language: Latin
Word Breakdown
- Root: irratiōnālis