the GNU version of the Collaborative International Dictionary of English
ad. In an intensive manner; by increase of degree.
The Century Dictionary and Cyclopedia
In an intensive manner; by increase of degree; as regards intensity or degree.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. in an intensive manner
Word Usage
"This real vagueness of class terms is equally true whether we consider those terms used extensively or intensively, that is to say whether in relation to all the members of the species or in relation to an imaginary typical specimen."