The phrase "absurd action" is correct and usable in written English.
It can be used to describe an action that is unreasonable, illogical, or ridiculous in nature.
Example: "The decision to cancel the event at the last minute was seen as an absurd action by the organizers."
Alternatives: "ridiculous behavior" or "nonsensical act".
His captors all wore masks and struck absurd Action Man poses.
By taking this absurd action the government razed the exchange-rate convertibility system what remained of it as well as the banking system, which, by virtue of its being backed substantially by foreign capital, had until then been strong.
An editorial in Hankyoreh termed the test an "absurd" action by North Korea: "Despite the international community's repeated warnings, North Korea conducted a third nuclear test yesterday following 2006 and 2009 in what amounts to a reckless provocation threatening peace in Northeast Asia and the world.
"When I was accused of a disgusting and absurd action of placing semen in patient's mouths.
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They've become the symbols of fighting against the "windmills" of the former order of things and also against the absurd actions of many politicians.
It was the fourth such attempt by the former student leader, Wu'er Kaixi, who said his lack of success so far was the result of "absurd" actions by the Chinese government.
You are so used to carrying out absurd actions for so long that when, for example, a young recruit nurse with only 12 weeks' experience is required to do quite advanced things, unthinking obedience becomes a resource.
"We hoped to the last that common sense would prevail, and Russian authorities would not resort to such absurd actions but they proved us wrong," Chuprov told The Times.
In this "Lone Ranger," we don't hear the loudest signifier of all, the iconic theme music, till nearly the end, when it trumpets an exciting, utterly absurd final action sequence, in which the Ranger himself, theretofore a clueless pill, finally comes into his own as a galloping hero.
