ab·surd 
(əb-sûrd, -zûrd)
(əb-sûrd, -zûrd)adj.
1.
a. Extremely unreasonable, incongruous, or inappropriate: an absurd request.
b. Impossible to take seriously; silly: a character who goes through many absurd adventures. See Synonyms at foolish.
2. Of, relating to, or manifesting the view that there is no order or meaning in human life or in the universe.
3. Of or relating to absurdism.
n.
The condition or state in which humans exist in an absurd universe, without meaning or purpose. Used chiefly with the.
[Latin absurdus, out of tune, absurd : ab-, intensive pref.; see AB-1 + surdus, deaf, muffled.]
ab·surdi·ty (-sûrdĭ-tē, -zûr-), ab·surdness n.
ab·surdly adv.