"absurd justification" is correct and usable in written English.
You can use it when someone is giving an outlandish or ridiculous explanation for an action they've taken. For example, "We can't believe he tried to give such an absurd justification for leaving his job early."
As Fei wrote, Armstrong "exposed the most searing experience of our lives, one that my husband and I still struggle to discuss with anyone but each other, for no other purpose than an absurd justification for corporate cost-cutting".
I love this passage, because it finds such a simultaneously meaningful and absurd justification for Proust's worship of the aristocracy: that leisure class was, for better or worse, Proust's only available "source of concrete images" of the classless Utopia.
Mr Christie offered the absurd justification that one cannot put a price on the benefits to the people of New Jersey of having an elected senator three weeks earlier, rather than letting the Republican caretaker he had appointed ride it out.
I find this line of reasoning to be an absurd justification for the unnecessary slaughter.
The effort was widely seen as pointless and the justification absurd.
("The reason we did it was to prove that it can be done,'' Eckard Wimmer, who led the team, said at the time. "Progress in biomedical research has its benefits and it has its downside.'') The effort was widely seen as pointless and the justification absurd.
A new exhibition in Barcelona, Vibracions Prohibides, documents the often absurd and hilarious justifications for these bans.
This supposed "cost-saving" justification is absurd -- multiple defense contracting scandals have only emphasized that when government contracts are awarded through political favoritism and pay-to-play dealmaking, public funds are squandered, not saved.
Yet, it seems obvious to us that if a German government office were to display the Third Reich's flag, claiming with it comes their expression of pride in the development of the Autobahn, we would consider this not only absurd, but also a justification of the worst of human evil.
Many of those designs are now safely slotted away in the category of "impossible but fun" – the Walking City, the Floating City... all of them rendered in gloriously lurid Terry Gilliam-like drawings, with attendant functionalist justification for the seemingly absurd.
Both dismiss worries about the justification of the criterion as absurd.
