He had arrived unexpectedly and they were delighted to see him.
He took a week off when his mother died unexpectedly last year.
He had no illness, so Harvey's death came unexpectedly. Unexpectedly, the couch exploded. It was an unexpectedly brief encounter. Unexpectedly, the monkey counted the beans correctly.
He came to my house unexpectedly
Fred unexpectedly blurted out our intentions to hold a surprise party.
Example sentence - We unexpectedly found an arrowhead in the wheat field.
The root word for unexpectedly is "expect."
She showed a great deal of disdain for him when she hung up the phone unexpectedly.
When two more guests unexpectedly arrived to the dinner party we had to reapportion the prepared food.
She was unexpectedly shanghaied into joining the team for the project.
Surprise would be the world. It is unexpectedly sudden.
Suprisingly.