adverb.
In a suitable manner; fitly; agreeably; with propriety.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adverb.
in an appropriate manner
Word Usage
"This is all dependent on Avatar being a suitably successful picture, of course… but what ’suitably successful’ means for a film with such a mammoth budget, I don’t know and can hardly dare guess."