unreason noun. [ʌn'ri:z(ǝ)n] ME.
[from UN-¹ + REASON noun¹.]
1. Unreasonable action or intention; injustice, impropriety. ME-E17.

2. Absence of reason; inability to act or think reasonably. E19.

3. A thing which is against or without reason. M19.
Phrases: Abbot of Unreason, Abbot Unreason Scottish History a person elected as the leading character in Christmas revelries mocking the Church and ecclesiastical establishments.

■ unreasoned adjective (a) devoid of reason; (b) not developed by reasoning: L16.

[TahlilGaran] English Dictionary ▲

unreason verb trans. [ʌn'ri:z(ǝ)n] Now rare. M17.
[from UN-² + REASON verb.]
1. Disprove, refute. M17.

2. Deprive of reason. L17.

[TahlilGaran] English Dictionary ▲