"lessen" in German to lessen verkleinern vermindern verringern sich vermindern Detailed translations for "lessen" to lessen to lessen(also: to attenuate, to downsize, to diminish, to minish) verkleinern to lessen(also: to lower, to allay, by), to shorten sth.) vermindern to lessen(also: to downscale) verringern{transitive verb} to lessen(also: to dwindle, to fall, to diminish, to decrease) sich vermindern{verb}