The phrase "a modest challenge" is correct and usable in written English.
It can be used to describe a task or situation that is not overly difficult and can be approached with a reasonable level of effort.
Example: "Completing this project will be a modest challenge, but I believe our team is capable of handling it."
Alternatives: "a slight challenge" or "a manageable challenge".
Her book, she writes, is a "modest challenge" to Kraft — a demand that the "particular traditions and history" of the company be understood.
The parameters of acceptable political conversation are, after all, heavily policed: even a modest challenge to continually stuffing the mouths of the richest with gold is ignored, ridiculed or demonised.
The impact of this "schooling" of the president by Congress in support of the position of the leader of a foreign country was shocking to the rest of the world, revealing, as it did, the dysfunctional nature of Washington's partisan politics and the inability of the U.S. to provide even a modest challenge to Israel.
Geithner said the magnitude of fiscal reforms that the United States needed to achieve debt sustainability was between 2 percent and 3percentt of gross domestic product, which he pointed out was "a modest challenge relative to what most countries around the world face on the fiscal side".
Deprived of any awkward feedback, any modest challenges that might allow us to maintain our skills, when the crisis arrives we find ourselves lamentably unprepared.
As Jeffrey Toobin reported in the New Yorker two weeks ago, Citizens United started out as relatively modest challenge to a federal campaign finance law.
Perhaps they were given too much carte blanche or the modest challenge of presenting two parallel storylines sucked up all their energy.
Given the impoverished state of political engagement in this era, it seems more likely that the conventions will glide smoothly through these modest challenges and present their bland, uncontroversial and irrelevant faces to the world once again.
There are fields full of rare flowers that swarm with brilliantly colored birds, gentle hills that offer modest challenges to hikers, and low mountains that are beginning to attract serious trekkers from many foreign countries.
Having met the modest challenges of Capelinhos and Monte da Guia, I felt ready for 3,400-foot Cabeço Gordo, Faial's highest point, and all the more imposing because it towers above a massive crater, the long-dormant volcanic heart of the island.
Oakmont has the longest par 3 (more than 300 yards if the pin is back) and the longest par 5 (nearly 700 yards) in the history of the U.S. Open, but those lengths — like the bunkers and the roughs and the astringent fairways — are modest challenges to these golfers relative to the vitreous greens.
