Word.ws English Dictionary

irrationable

irrationable adjective: not rational.

Adjective

irrationable (comparative more irrationable, superlative most irrationable)

  1. Not rational.
    • […] there may be considerable loss of nitrogen due to removal of crops and irrationable methods of farming, […]1906, Report of the Minister of Agriculture for the Dominion of Canada, for the five months ended March 31, 1906, Department of Agriculture of Canada, page xxxvi
  2. Not possessing rationality.
    • Operations that are perfected in the economies of the irrationable animals, […]1860, Robert James Mann, A guide to the knowledge of life, vegetable and animal, revised and corrected edition, page 344

Forms of irrationable

comparativemore irrationable
superlativemost irrationable

Origin of irrationable

From Latin irratiōnābilis, from ir- + ratiōnābilis.

Words formed from irrationable

Questions about irrationable

What does irrationable mean?
Irrationable means not rational.
What part of speech is irrationable?
Irrationable is an adjective.

Words near irrationable in the dictionary

  1. irradicating
  2. irradiometer
  3. irradiometers
  4. irratable
  5. irrationability
  6. irrationable
  7. irrationably
  8. irrational
  9. irrational number
  10. irrational numbers
  11. irrationalise

Source and license

Adapted from Wiktionary: irrationable (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “irrationable.” Word.ws, https://word.ws/irrationable. Based on Wiktionary, CC BY-SA 4.0.