Hingis held serve in the opening game, but her 1-0 lead proved ephemeral.
The daze proved ephemeral, as did her medical complaints.
Government efforts to take over the credit expansion also proved ephemeral in the early years of the transition.
Many of these works proved ephemeral in quality and popularity.
In the campaigns of the last decade the advantage produced by intensive convention coverage has often proved ephemeral.
But like many here, she worries that it may prove ephemeral.
The sales slowdown reported by brokers looks similar to other recent pauses that proved ephemeral.
While welcoming this early expansion of services, skeptics worry that it will prove ephemeral.
There have been cease-fires in Bosnia before, all quickly broken, and this one could prove ephemeral.
The one area in which the Group was to prove immediately ephemeral was acting.