Expectant (adjective)

1. Full of expectation or anticipation.
2. In a state of being about to happen.

Origin:

Late 16th century: from latin expectant- "awaiting", from the verb expectare.

Examples:

1. She was expectant of her first child.
2. The audience was expectant of the start of the concert.
3. The company was expectant of a big breakthrough.
4. The team was expectant of a victory.
5. The patient was expectant of a positive outcome from the surgery.