irrational number
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irrational number
noun irrational numbers
- Any real number that cannot be expressed as a ratio of two integers. The square root of a positive integer is an irrational number unless the positive integer is a perfect square, in which case the square root will also be a positive integer.
Opposite: rational number
Thesaurus
noun
Opposite: rational number
Translations
Every language
noun real number that is not rational
| Español | número irracional |
|---|---|
| 한국어 | 무리수 murisu |
| 日本語 | 無理数 murisū |
| 中文 | 無理數 /无理数 wúlǐshù |
| हिन्दी | अपरिमेय संख्या aprimey saṅkhyā |
| Português | número irracional |
| Français | nombre irrationnel |
| Deutsch | irrationale Zahl |
| Italiano | numero irrazionale |
| Ελληνικά | άρρητος αριθμός árritos arithmós |
| Română | număr irațional |
| Русский | иррациона́льное число́ irracionálʹnoje čisló |
| Tiếng Việt | số vô tỉ |
Talk about this word "irrational number." Wiktionary, via Micwyn, micwyn.com/word/irrational%20number. Accessed 6 Nov. 2026. irrational number. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/irrational%20number "irrational number." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/irrational%20number.Cite this
@misc{irrational_number_2026,
title = {irrational number},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/irrational%20number},
urldate = {2026-11-06}
}
