The word 'harmfully' is correct and usable in written English.
It is an adverb that means causing harm or damage. Example: The chemicals in the product were found to be harmfully affecting the environment.
There are some less-than-convincing bits: banning banks from proprietary trading feels good but won't make them much safer; the package doesn't tackle Fannie Mae and Freddie Mac, the failed housing agencies; and legislators could include some harmfully draconian prohibitions on derivatives.
If the beauty business deceives people into spending money uselessly or harmfully, should it be stopped from doing so?
This, in turn, has poisoned vegetables and drinking water, most harmfully affecting the health and livelihood of the human population around the Aral Sea littoral.
I don't think the writer intended to say that Dworkin wrote too many papers; that it would have been fine if he had written fewer, but the number he did write was harmfully excessive.
In the meantime, we're probably better off forgetting about the Jim Carrey of 2013, and enjoying the performance given by the Jim Carrey of 2012, all the while remembering that both Jim Carreys have a lot in common with the one who campaigned so harmfully against the MMR vaccine.
"But as we looked at all of the fast-track projects, Calico was far and away the most harmfully located project".
The great waves of plague that twice devastated Europe and changed the course of history had their origins in China, as did a third outbreak that struck less harmfully in the 19th century, a team of medical geneticists reported Sunday.
What The Times writes can quickly, and sometimes harmfully, become pundit fodder.
"The ethical media rule is that corporate business interests should never interfere in journalism — or at least not so blatantly, publicly and harmfully.
Just keeping spending at the harmfully low sequester level would be a victory for conservatives, bringing the deficit to the lowest level in years.
The great waves of plague that twice devastated Europe and changed the course of history had their origins in China, a team of medical geneticists reported Sunday, as did a third plague outbreak that struck less harmfully in the 19th century.
