to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly')
He was wholly convinced. Entirely satisfied with the meal. It was completely different from what we expected. Was completely at fault. A totally new situation. The directions were all wrong. It was not altogether her fault. An altogether new approach. A whole new idea.
source: WordNet 3.0
In a whole or complete manner; entirely; completely; perfectly.
