pandas.Series.is_monotonic_decreasing# property Series.is_monotonic_decreasing[source]# Return boolean if values in the object are monotonically decreasing. Returns: bool Examples >>> s = pd.Series([3, 2, 2, 1]) >>> s.is_monotonic_decreasing True >>> s = pd.Series([1, 2, 3]) >>> s.is_monotonic_decreasing False