The phrase "a highly pertinent" is correct and usable in written English.
It can be used when describing something that is very relevant or applicable to a particular situation or topic.
Example: "The research findings presented in the paper are a highly pertinent contribution to the ongoing debate about climate change."
Alternatives: "very relevant" or "extremely applicable".
One reader made a highly pertinent point for the modern Guardian: "At a time when you are shedding columnists and reducing the coverage of the paper, dedicating six pages of the already reduced edition to a football manager, as you have today [9 February], is likely to result in the dwindling number of those prepared to pay for the paper, one of whom I am (for the moment), diminish even further.
In conclusion, we have presented here a highly pertinent system that can be used to investigate events in the pregnant uterus in real time and with a representative biological system.
A highly pertinent question is whether eIF4E is a pivotal target that mediates the therapeutic activity of these inhibitors in cancer.
Invariants, particularly differential invariants, are a highly pertinent concept for deciding whether a series of movements was generated from the same prototype or primitive by using each time a different action or transformation from the same group of motions.
Or an excuse?" This highly pertinent question never gets a satisfactory answer from Michael or anyone else.
Keller's observation that Assange was primarily a source is highly pertinent.
Over the weekend, while stopping and pestering 'artists' who have better things to do - like get the mud out of their gold lame jackets - we'll be asking them a series of highly pertinent questions.
With a web of highly pertinent allusions and references - to Whitman, to Nietzsche - Louvish keeps drawing us back to the creative core of Chaplin's work, "the very fact of being alive, of being vulnerable in a void filled with the self and perception".
The fact that endocrine tumours are highly vascular in nature renders analysis of angiogenesis as a prognostic factor highly pertinent.
Moreover, the apparent inconsistency of rodent data warrants further evaluation in an animal model highly pertinent to humans.
And Mr. Romney gave a somewhat awkward answer on immigration, an issue that is highly pertinent in Florida, at the debate Monday night.
