'unknown challenges' is a correct and usable part of a sentence in written English.
You can use it to refer to difficulties or obstacles that are unknown but may be encountered. For example, "The organization was determined to overcome the unknown challenges that lay ahead."
In addition, future today unknown challenges.
She said she felt "excitement, nostalgia, nervousness for the future". She said she knows the new officers will be heading into unknown challenges at a moment of global tensions in the Middle East, the Korean Peninsula and elsewhere.
In order to better prepare for future developments in hypersonic flight, this article reviews the advances made within the past 50 years and then looks into the future, not just for new technological developments, but for new ways of thinking about the unknown challenges that lie ahead.
You don't have to know what kind of life is genuinely valuable; all you have to know is that there is some life that is valuable, and that you need to prepare for the unknown challenges that will stand in the way of it, whatever it turns out to be — just as Harry Potter had to prepare for dragons and evil wizards without knowing exactly what he was destined to do or become.
In every corner, we find opportunity, laced with new and often unknown challenges.
I recently wrote an article about the frequently unknown challenges that being your own boss can pose.
Do we no longer have the courage to face an unknown challenge?" Steuart Lansing Pittman was born in Albany on June 6 , 1919 the second of Ernest and Estelle Pittman's three children.
He also said pharmacies are used to dealing with complex supply chains - but acknowledged that Brexit was giving them "a bit of an unknown challenge".
This year's carnival is also facing the previously unknown challenge of Zika.
MiSK Schools aim to foster resilient and independent young adults who can take on the as-yet-unknown challenges of the 21st century and flourish in this rapidly evolving time.
Importantly, unlike naturally occurring symptoms in which the time of occurrence and the exact eliciting trigger are unknown, experimental challenges make it feasible to combine the assessment of symptoms with that of the markers of contributing immune function(s) and even the kinetics of responses can be monitored to help establish cause effect relations.
