the GNU version of the Collaborative International Dictionary of English
ad. In an infernal manner; diabolically.
The Century Dictionary and Cyclopedia
In an infernal or devilish manner; diabolically; outrageously.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. extremely
Word Usage
"I will be moving to this "infernally" hot city next year, and while I have traveled there a good number of occasions to visit my paternal family, it has been fifteen years."