sinking

nouns

a descent as through liquid (especially through water)

"they still talk about the sinking of the Titanic"

sinking

is derived from

is a type of (narrower)

a movement downward

a slow fall or decline (as for lack of strength)

"after several hours of sinking an unexpected rally rescued the market"; "he could not control the sinking of his legs"

sinking

is a type of (narrower)

a change downward

"there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"

a feeling caused by uneasiness or apprehension

"with a sinking heart"; "a sinking feeling in the pit of my stomach"

sinking, sinking feeling