worsen
verb
[ ˈwəːs(ə)n ]
• make or become worse.
• "her condition worsened on the flight"
Similar:
aggravate,
exacerbate,
make worse,
compound,
add to,
intensify,
increase,
magnify,
heighten,
inflame,
augment,
add fuel to the fire/flames,
put salt on the wound,
deteriorate,
degenerate,
decline,
get/grow/become worse,
take a turn for the worse,
weaken,
sink,
slip,
slide,
slump,
fall off,
ebb,
wane,
lapse,
regress,
retrogress,
go downhill,
go to pot,
go to the dogs,
go down the toilet,
go down the tubes,
hit the skids,
nosedive,
take a nosedive,