the GNU version of the Collaborative International Dictionary of English
ad. In an inseparable manner or condition; so as not to be separable.
The Century Dictionary and Cyclopedia
In an inseparable manner; so as not to be capable of being separated.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. without possibility of separation
Word Usage
"The opinion, that the winds move around the central point or line of the storm, was strenuously maintained by the late Mr. Redfield, whose activity in his favorite pursuit has connected his name inseparably with meteorology."