controversial issue (noun) cause celebre: celebrated case
Sinonime: cut,
decline, descent,
deterioration, dip,
downfall, downslide, downswing, downtrend, downturn, fall, fall-off, landslide,
lapse, lowering, precipitation,
reduction, sag,
slide,
slip,
slump, tumble,
upsetAntonime: increase, rise