The phrase "a fairly challenging" is correct and usable in written English.
It can be used to describe a task or situation that is somewhat difficult but not excessively so.
Example: "The exam was a fairly challenging experience, requiring a good understanding of the material."
Alternatives: "somewhat difficult" or "relatively tough".
Distance 7 miles (11.3km) Classification Moderate Duration 3 hours Begins High Down chalk pit car park OS grid reference SZ325856 Walk in a nutshell A fairly challenging figure-of-eight circuit around this spectacular and blustery corner of the island where Tennyson was once a regular walker.
The one mill still standing can be reached by a fairly challenging walk through the woodland from Greta Bridge.
In general, this is a fairly challenging assumption to test or support with confidence.
Design for lightweight and crashworthiness remains a fairly challenging issue in vehicle industry.
This is a fairly challenging task due to the fact that the system under consideration is not flat and the angular velocity is a non-minimum phase output.
We propose an automatic method for fast reconstruction of indoor scenes from raw point scans, which is a fairly challenging problem due to the restricted accessibility and the cluttered space for indoor environment.
The world championships was at times fairly challenging for us as a team.
As a result, condition monitoring of rotating machinery is fairly challenging.
Fielding had a tricky time engaging and recording every interaction with a child with Asperger's, while engaging 29 others, some fairly challenging.
Also, every Mario game gets fairly challenging in the end, but anyone of pretty much any age can just sit down and start playing".
"If interest rates went to 6% it would be fairly challenging for the housing market but I don't want to overstate that.
