Static

noun
a crackling or hissing noise caused by electrical interference
Similar: atmospherics, atmospheric static
adjective
concerned with or producing or caused by static electricity
“an electrostatic generator produces high-voltage static electricity”
Similar: electrostatic
adjective
showing little if any change
“a static population”
Similar: stable, unchanging
adjective
not in physical motion
“the inertia of an object at rest”
Similar: inactive, motionless, still