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"
"she felt right at home"
"he fell right into the trap"
To the fullest extent or degree.
"She was totally exhausted after running a marathon without stopping for water."
In plain English: Totally means completely or absolutely something.
"I am totally exhausted after working all day."
Usage: Use totally to emphasize that something happens completely, such as in "I am totally exhausted." It functions similarly to words like entirely or absolutely when describing total intensity rather than physical wholeness.
Totally is a modern formation created by adding the suffix -ly to the word total. It was first used in the late 1960s as an intensifier meaning "completely," evolving from its original sense of being whole or entire.