The phrase "a formidable complexity" is correct and usable in written English.
It can be used to describe a situation, problem, or system that is very intricate or difficult to understand.
Example: "The project presented a formidable complexity that required extensive planning and collaboration among the team members."
Alternatives: "a significant intricacy" or "a daunting complexity".
There's every reason to believe that even relatively crude perceptual capacities require inferences of formidable complexity; certainly more complex than what could be done with the resources that Bermúdez is prepared to grant.
But we do know that although these parasitic forms have lost many body parts and the structural complexity of their relatives, they have retained a formidable behavioral complexity.
But in an age in which previously cherished institutions and unquestioned political "norms" are newly in doubt, what Barenboim calls the "ferocious" character of Bruckner's music, which combines formidable complexity with utter simplicity, may be a compensatory tonic.
"General relativists," says Mr. Will, "had the reputation of residing in intellectual ivory towers, confining themselves to abstruse calculations of formidable complexity". But the discovery of pulsars and black holes within the Milky Way, as well as violent quasars situated at the edge of the visible universe, dramatically changed this situation in the 1960's.
As he had on earlier occasions, he also warned that the "formidable complexity of measuring the scale of potential exposure" to derivatives made it hard to monitor the products and to gauge the financial vulnerability of individual banks, brokerage firms and other institutions.
The formidable complexity and evasive nature of tumor biology are the major reasons for the slow progress in implementing effective modalities of prevention and treatment of most cancers.
In fact, Bert C. Roberts Jr., the chairman of MCI, who would become chairman of MCI Worldcom, sees some formidable complexities.
Waving my book around like a wet rag, he went on to itemize his (many) complaints with Amazon in general, then began detailing the formidable complexities of Amazon's bookkeeping he'd have to deal with if he took my book.
But the challenge is a formidable one, given the complexity, subtlety, and power of language.
These factors have not been evaluated systematically, but identification of such factors presents a formidable task, considering the complexity and diversity that constitute individual tumor and tumor host environment.
