unimaginably
uni·ma·gi·nably
adverb
1.
to an unimaginable extent
Origin
From unimaginable + -ly.
Related words
Pertaining to
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.