The phrase "even narrowly" is correct and usable in written English.
It can be used to emphasize a limited or specific scope or perspective in a discussion or argument.
Example: "The policy was designed to address issues even narrowly related to environmental concerns."
Alternatives: "even specifically" or "even restrictively".
This sensational police story even narrowly missed vanishing in the fire at Universal in 2008.
Immunotherapy increases their frequency in the blood, and even narrowly defined allergen epitopes are recognized by numerous distinct B-cell clones in a patient.
Most states have a winner-take-all system, so that the candidate who finishes first, even narrowly, gets all the state's electoral votes.
"Ibo Lele," which was struggling for attention in even narrowly focused world-music publications, has drawn warm notice in the mainstream news media.
We also know Trump won evangelicals in Nevada and South Carolina and even narrowly won among voters in the Palmetto State who said it mattered to them that a candidate shared their religious beliefs.
In a country where unemployment — even narrowly defined — is 23percentt and where slowing growth is likely to hit manufacturing jobs, both the A.N.C. and its breakaway, the Congress of the People, known as COPE, are positioning themselves as agents of change — a challenging task since the leaders of both parties have been involved in running the country for years.
One potential problem is that, judging from overseas examples (such as promising initiatives in Europe), even narrowly-targeted programs often need strong community involvement to be effective.
This is a fine thing for us to do as a society if we wish to ensure that, say, our most widely-read commentators are worth being widely-read or even narrowly-read.
Other taxes are focused even more narrowly.
There is substantial variation in these skill requirements, even within narrowly defined occupations.
Even in narrowly partisan terms, Democrats would be well advised to keep listening to their base.
