impromptu court (noun) kangaroo court: unauthorized court
Sinonime: abating, declining, depreciating, diminishing, dropping, dwindling, dying down, ebbing, ebbing, fading away, lightening, losing momentum, lowering, moderating, narrowing, plummeting, plunging, quieting, sagging, shrinking, shriveling up, sinking, slackening, slowing, slumping, softening, subsiding, waning, wasting, weakening, wearing down, wearing off