the GNU version of the Collaborative International Dictionary of English
adj. Contributing, or tending to contribute.
The Century Dictionary and Cyclopedia
Tending to contribute; contributing; having the power or quality of giving a portion of aid or influence; furnishing a joint part or share.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. tending to bring about; being partly responsible for
Word Usage
"Maybe I am being nostalgic but I remember this site as being one with a more positive contributive environment at one time, while there are still elements of that the balance has shifted."