relating or subject to the special or the general theory of relativity
"relativistic quantum mechanics"
"relativistic increase in mass"
"radiation from relativistic particles"
of or relating to the philosophical doctrine of relativism
"The professor argued that their relativistic approach to ethics made it impossible to establish any universal moral standards for the entire class."
Of or relating to relativity.
"Physicists study relativistic effects when particles approach the speed of light, as time and space behave differently under these conditions according to Einstein's theory."