vastly
adverb
1.
to an exceedingly great extent or degree
- “He had vastly overestimated his resources”
- “was immensely more important to the project as a scientist than as an administrator”
Origin
From vast + -ly.
Related words
Pertaining to
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.