deteriorating (part of speech: verb)
fading, sinking, putrefying, atrophying, downgrading, relapsing, degenerating, going downhill, ebbing, regressing, slipping, getting worse, tergiversating, sliding, decaying, retrogressing, falling apart, reverting, collapsing, withering, wilting, slumping, worsening, mouldering, deteriorating, declining, dilapidating, waning
relapsing (part of speech: verb)
- " Luggage first," said Barebone, lapsing into the curtness of the sea. - "The Last Hope", Henry Seton Merriman.
- He had been oddly preoccupied the last day or so, lapsing into prolonged meditations from which he would emerge with a sudden and almost guilty start. - "Antony Gray,--Gardener", Leslie Moore.
- Each of these exclamations was a shriek; and I must remark of my sister, what is equally true of all the violent women I have ever seen, that passion was no excuse for her, because it is undeniable that instead of lapsing into passion, she consciously and deliberately took extraordinary pains to force herself into it, and became blindly furious by regular stages; what was the name he gave me before the base man who swore to defend me? - "Great Expectations", Charles Dickens.