A synonym for the season Autumn is Fall.
fall
fall
crashdroploweringdwindledraw backtumbleeasecollapsedecrease
water fall
because of antonym
descend,go down,fall,sink
movement, moving, locomotion, rise and fall, shifiting
Wave, swell, surge, rise and fall...
Surge, ripple, wave, swell, flow, rise and fall...
decrease, fade, lessen, fall, Or: deny, reject, refuse
break, separate, split up, fall apart, come apart