The phrase "absurdly complex" is correct and usable in written English.
It can be used to describe something that is excessively complicated or difficult to understand.
Example: "The instructions for assembling the furniture were absurdly complex, leaving many customers frustrated."
Alternatives: "ridiculously complicated" or "unbelievably intricate".
Ninety per cent of these recipes are absurdly complex; the pages are packed with tiny print.
We are in the midst of a rewrite of our absurdly complex rules.
That we build absurdly complex intellectual structures on the marshmallow foundations of a fantasy.
The intricate network of western water rights, some riparian and some based on first use, is absurdly complex.
But it is not a bold reform; more a tweak than a transformation of America's absurdly complex tax code.
If there is widespread agreement on anything in Washington, it is that the tax code is absurdly complex and should be simplified.
The absurdly long and complex US tax code encourages avoidance on a grand scale and results in almost no company paying the full rate; Pfizer itself has been so adept at avoiding tax through foreign subsidiaries that it claims not to have made a dime in profit in the US since 2007.
There are even a few local breweries producing some triple IPAs that are every bit as absurdly hoppy and complex as Pliny the Younger — and it doesn't require standing in line, buying a raffle ticket, or being in the right bar at the right time to score a glass of these would-be usurpers.
What we have seen of the Europeans' vaunted equivalent, a year into its gestation but with barely three weeks to go before its first version is due to be born (see article), is an ugly hybrid that differs from its supposed American forebear precisely by virtue of its opposites: it is complex, confusing and absurdly long.
After the mortgage collapse, critics charged that the agencies gave sterling ratings to complex securities based on absurdly optimistic models, only to later watch them falter.
There's an absurdly comic purity to lines like this that suggest that the filmmakers, having already ignored little details like complex characters and psychological motivations, decided to whittle the whole thing down to its generic core.
