Synonyms for Dying:

adj.

failing, expiring (adjective)
moribund, passing, fading, doomed, going, fated, done for, vanishing, Decaying, sinking, at death's door, Perishing.
regressive (adjective)
decadent.

n.

unpromising, uncompetitive, disadvantageous, hopeless, unworkable, on the rocks, precarious, faltering, not have a hope in hell, shaky. at death's door, goner, on your last legs, on your deathbed, someone's number is up, someone's/something's days are numbered, not long for this world, fatally. death (noun)
mortality.
destruction (noun)
mortality.
dying (noun)
demise, death.

v.

coloring (verb)
painting, Inking, coloring, tinting, staining, shading.
defeated (verb)
done for.
dying (verb)
falling, Succumbing, departing, Perishing, passing, parting.
ending (verb)
halting, expiring, finalizing, stopping, ending, concluding, passing on, Accomplishing, finishing, winding up, Capping, exiting, Terminating, Deceasing, closing, passing away, Culminating, wrapping up, completing, Ceasing, Checkmating.

Other synonyms:

fading, death rate, death toll, goner, morbidity, unlit, failing, bereavement. fatality, death throes, fatally, burn down. die. burn out. go out. out. discouraging
hopeless.
rotting
Decaying.

Usage examples for dying

  1. I know he is just dying to come here and talk about her. – Those Dale Girls by Frank Weston Carruth
  2. She likes to think that everybody's dead or dying but herself. – Lady Rose's Daughter by Mrs. Humphry Ward
  3. He knew that she was dying – The Return of Tarzan by Edgar Rice Burroughs