What is the opposite of flicker?

What is the opposite of flicker, flicker as verb means to burn or shine unsteadily with wavering light, to flutter quickly, so opposite is to shine steadily, to glow constantly, to burn steadily without wavering, with antonyms like steady, glow, blaze, shine steadily, remain constant, be still. As noun meaning unsteady light, opposite of flicker is steady glow, constant light, stable flame, continuous illumination, or blaze. As bird flicker, opposite would not have direct opposite, but in terms of behavior, opposite of flicker woodpecker that flashes colors might be plain bird that does not flash. Generally opposite of flicker is steady, constant, stable, unwavering light or movement, so opposite of flicker is steady glow, constant shine, or stillness, with examples like steady lamp versus flickering lamp, constant light versus flickering light, stable versus flickering. So opposite of flicker is steady, constant, unwavering, continuous, with verb opposite being to shine steadily or to glow constantly, and noun opposite being steady light or blaze that does not flicker, providing constant illumination without wavering.