the GNU version of the Collaborative International Dictionary of English
ad. In immense manner or degree.
The Century Dictionary and Cyclopedia
To an immense extent or degree; exceedingly.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. to an exceedingly great extent or degree
Word Usage
"The Moores encourage other families to consider special-needs adoption, which they describe as immensely fulfilling, but also urge careful deliberations."