The phrase "a unquestionably" is not correct in written English.
The correct form would be "an unquestionably" since "unquestionably" begins with a vowel sound.
Example: "She is an unquestionably talented musician who captivates her audience."
Alternatives: "an indisputably" or "a definitely."
But some outside cardiologists say that they're not sure there is value in routinely testing for FH, despite the fact that the disease is a unquestionably deadly, because simple tests for cholesterol and low-density liprotein (LDL, the "bad cholesterol") are so cheap and readily available.
There, testers found a unquestionably dangerous sample of bath-salt variety stimulant known as N-Ethylpentylone.
In Manchester City, Dortmund faces an opponent with an unquestionably stronger squad, but a level of experience and understanding of foreign opponents not unlike their own.
The messages had this in common: They were all written to a correspondent who led an unquestionably normal life.
She gives a lovely performance in what is an unquestionably spectacular production from start to finish, complete with a formidable 14-piece orchestra.
Never before, I believe, have we recognized the right of local law to make the use of an unquestionably legal federal license a criminal offense.
For June: an unquestionably casual, natural shot of JT having a stroll through a lush neighbourhood.
Now from our vantage point, a bill of rights just seems like an unquestionably good thing.
With five minutes to go, an unquestionably legal goal settled the argument, Dalglish heading a Martin Buchan centre home.
Building a dam no longer appears, as it once did, an unquestionably forward-looking or progressive step.
Hearts were still in an unquestionably strong position.
