alogism
/ˈeɪlədʒɪz(ə)m/ /ˈeɪlɒɡˌɪz(ə)m/noun
1An illogical or irrational statement or notion.
2 Philosophy. Opposition to or absence of reason or logic; specifically the theory that a person may conduct him or herself without being restricted by logic or rationality.
- Particularly associated with the pragmatist thinkers of the early 20th cent..
Origin
Late 17th century; earliest use found in Edmund Everard (fl. 1679–1681). From post-classical Latin alogismus from Byzantine Greek ἀλογίζεσθαι to be irrational + -ισμός; compare ancient Greek λογισμός.