Rational antonyms

What is the opposite word for Rational?

Use filters to view other words, we have 86 antonyms for rational.

Antonyms for rational

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Rational Thesaurus

Definitions of Rational

Rational Synonyms

Nearby Words

ration, rationalization, rationale, rationalise, rationalize, rationalism, rationalistic, rationalist, rationality, rationing, rationed, rationally

External Links

Other usefull sites with antonyms of this word:

Merriam-webster.com

Collinsdictionary.com

Opposite words of rational

Photo search results for Rational

Crop faceless person putting coin into glass jar

Food and Drinks Inside the Carton Box

People Preparing Food Rations in the Box

A Man Holding a Canned Good and a Woman Writing on the Clipboard

People Picking Up Supplies Packed in a Cardboard Box

Mother and Son Carrying Relief Goods

Image search results for Rational

thinking, person, person thinking

pleasurable, tops, plucky

fire, flame, kettle

cart, shopping, shopping cart

top, beer, bar

biscuit, butter biscuit, leibniz

Cite this Source

Antonyms for Rational. (2016). Retrieved 2026, July 19, from https://thesaurus.plus/antonyms/rational

Antonyms for Rational. N.p., 2016. Web. 19 Jul. 2026. <https://thesaurus.plus/antonyms/rational>.

Antonyms for Rational. 2016. Accessed July 19, 2026. https://thesaurus.plus/antonyms/rational.