conventional (adjective) conventional: common, normal
Sinonime: declivity,
decrease,
depression,
descent, dip, downslide, downswing, downtrend, downturn, drop, drop-off, fall-off,
hill,
incline,
lapse,
loss, lowering,
pitch, sag,
slide,
slip, slope,
slumpAntonime: ascent,
increase,
rise