Step 1: "Arrival" refers to the act of coming to a place, while its antonym refers to leaving or going away.
Step 2: Analyzing the options:
- Rival refers to a competitor, not an antonym of arrival.
- Survival refers to the state of continuing to live, which is unrelated.
- Rupture refers to a break or tear, which is not related to arrival.
Step 3: "Departure" is the opposite of arrival, meaning to leave.