"slacken" in German to slacken entspannen erlahmen nachlassen schwächer werden abflauen "slacken" German translation Slacken {n} slacklining Detailed translations for "slacken" to slacken to slacken entspannen to slacken(also: to flag, to droop) erlahmen to slacken(also: to go off the boil, to flag, to die down, to dwindle) nachlassen to slacken(also: to wane, to attenuate, to drop) schwächer werden to slacken(also: to tail off, to wane, to drop) abflauen{intransitive verb}