* @return List
   */
  public static List unsetFeature(Cons features) {
    try {
      { Stella_Object featurename = null;
        Cons iter000 = features;

        for (;!(iter000 == Stella.NIL); iter000 = iter000.rest) {
          featurename = iter000.value;
          Logic.unsetPowerloomFeature(Stella.string_keywordify(Stella_Object.coerceToString(featurename)));
        }
      }
    } catch (LogicException e) {
      Stella.STANDARD_ERROR.nativeStream.print(Stella.exceptionMessage(e));
    }
    return (Logic.$CURRENT_POWERLOOM_FEATURES$);
  }