static

static adjective uk/ˈstætɪk/ us
not moving or changing

неподвижный, неизменный
The number of students on the course has remained static .

STATIC noun

[ U ] uk/ˈstætɪk/ us static noun [U]
(NOISE)

noise on a radio or television that is caused by electricity in the air

атмосферные помехи