going on all the time

fixed

level; regular, steady; (of amount, distances, values) equal; (of a number) that can be divided by two

flat, uniform

having a horizontal surface; equal in measurement, standard

smooth, balanced

having, using, only one colour

fixed

firm; not likely to move or change; a building in which horses are kept and fed; a number of horses (especially racehorses) belonging to one particular owner

constant, fixed; resistant

not changing; in a state of balance; interference in the signal received by a radio or TV

motionless, changeless

firmly fixed or supported; not likely to fall over; not changing in amount, speed etc; (of a person behaviour) having, keeping to, a regular (good) pattern

stable, fixed

not varying in form, quality etc

consistent