nonrational

adjective

non·​ra·​tio·​nal ˌnän-ˈrash-nəl 

-ˈra-shə-nᵊl

1

: not based on, guided by, or employing reason : not rational : irrational

nonrational beliefs

nonrational behavior

… anthropological history exploring such nonrational aspects of society as mating customs and eating habits.

—Gertrude Himmelfarb

2

mathematics : not relating to or being a rational number : irrational

nonrational numbers

Synonyms

• irrational
• unreasoning
• unreasonable
• illegitimate

Examples of nonrational in a Sentence

was so upset that he was completely nonrational for a moment

Word History

First Known Use

1859, in the meaning defined at sense 1

Rhymes for nonrational

• formational
• foundational
• gestational
• gradational
• locational
• mutational
• notational
• relational
• rotational
• sensational
• translational
• vibrational