What is the meaning of static?

noun

• A crackling or hissing noise caused by electrical interference.
  • synonyms: atmospherics, atmospheric static
• Angry criticism.
  • usage: "they will probably give you a lot of static about your editorial"

adjective

• Not in physical motion.
  • usage: "the inertia of an object at rest"
  • synonyms: inactive, motionless, still
• Concerned with or producing or caused by static electricity.
  • usage: "an electrostatic generator produces high-voltage static electricity"
  • synonyms: electrostatic
• Showing little if any change.
  • usage: "a static population"
  • synonyms: stable, unchanging