[ree-zuh
n-lis] 
| 1. | not having any reason or sense: an utterly reasonless display of anger. |
| 2. | not having a natural capacity for reason. |
| reasonless | |
adjective | |
| 1. | not marked by the use of reason; "mindless violence"; "reasonless hostility"; "a senseless act" [syn: mindless] |
| 2. | not endowed with the capacity to reason; "a reasonless brute" |
| 3. | having no justifying cause or reason; "a senseless, causeless murder"; "a causeless war that never had an aim"; "an apparently arbitrary and reasonless change" [syn: causeless] |