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Related to scenario: scenery
The best possible outcome. The best-case scenario is that Doug will be only an hour late—traffic on his route is at a standstill. They're only selling junk at the yard sale, so I think the best-case scenario is that they'll make $10. The doctor said that the best-case scenario is an operable tumor.
the worst-case scenario
The worst possible thing that could happen. We don't expect it to happen, but we need to plan for the worst-case scenario. The worst-case scenario here is that we lose the next three games and miss the playoffs. The best-case scenario is that we win out and get a bye in the first round.
Cliché the optimum outcome being considered. (Compare this with the worst-case scenario.) Now that we've seen the negative angle, let's look at the best-case scenario. In the best-case scenario, we're all dead eventually—but then that's true of the worst-case scenario also.
Cliché the worse possible future outcome. Now, let's look at the worst-case scenario. In the worst-case scenario, we're all dead.
n. the worst possible future outcome. Now, let’s look at the worst-case scenario.
The best or worst possible outcome for a situation. These clichés use scenario in the sense of an imagined situation or sequence of events, a usage that has become common since about 1960. For example, “In the best-case scenario, Dad set off the burglar alarm accidentally,” or “It isn’t just that the price is higher, but none are left even at that price—that’s the worst-case scenario.” An amusing how-to manual by David Borgenicht and Joshua Piven, The Worst-Case Scenario Survival Handbook (1999), probes improbable mishaps and emergencies, such as how to escape quicksand or how to land a pilotless airplane. The term appeared in Newsweek, on June 23, 2010, “The Oil Spill’s Worst-Case Scenario? Efforts to Stop the Flow May Have Set the Stage for an Even Bigger Catastrophe.” The antonym, best-case scenario, meaning the best possible outcome, is also a cliché. The Statesman Journal (Oregon) had it on August 22, 2010: “Best-Case Scenario Still Means State Cuts” in the budget. See also if worst comes to worst.
See best/worst case scenario.