And second, software tends to be stubbornly persistent.

After an unfortunate accident, she ends series three with a wasp mask stuck to her head and proves stubbornly persistent.

While homicide rates in many big cities have declined to levels not seen since the 1960's, Chicago's have been stubbornly persistent.

For us believing physicists the distinction between past, present, and future is only a stubbornly persistent illusion.

People like us, who believe in physics, know that the distinction between past, present and future is only a stubbornly persistent illusion

The large and stubbornly persistent budget deficit has been a major source of frustration.

Few nonhuman races have the stubbornly persistent heart of the Terrans, which beats by muscular contraction alone.

The Fed's announcement highlighted the contradictory moves of the economy itself, which has provided evidence of both slowing economic growth and stubbornly persistent inflation.

But there is also deep frustration that the original hiring problem remains stubbornly persistent and is getting worse.

Yet there is one thing about the abortion conflict that has remained stubbornly persistent: its centrality and uniquely polarizing place in American life.