decaying

adjective

1 the decaying bodies of fish filled the pond:

decomposing, decomposed, rotting, rotten, putrescent, putrid, bad, off, spoiled, spoilt, perished;

mouldy, mouldering, festering, fetid, stinking, smelly, rancid, rank;

maggoty, worm-eaten, wormy, flyblown.

2 a visibly decaying city:

declining, degenerating, dying, waning, crumbling, collapsing;

run down, broken-down, tumbledown, ramshackle, shabby, battered, decrepit;

in decline, on the decline, in ruins, in (a state of) disrepair, falling apart, falling to pieces;

informal on its last legs, on the way out.

word toolkit	decaying
See derelict.

decaying Oxford Dictionary of English