Name for a slightly-stronger than Nash Equilibrium? As I understand it, a Nash Equilibrium is a fixed point in strategy profile space, in the sense that it is not to any individual player's advantage to deviate from said strategy profile.

Is there a name for the (slightly stronger) equilibrium condition whereby it is to every individual player's disadvantage to deviate from said strategy profile? If so, what is it?
This is a strict Nash Equilibrium.