  Focusing on the rotating black hole (BH) surrounded by the anisotropic fluid
matters; radiation, dust, and dark matter, we study the massive scalar
superradiant scattering and the stability in the Kiselev spacetime.
Superradiance behavior is dependent on the intensity parameter of the
anisotropic matter $K$ in the Kiselev spacetime. By adopting the manifest of
low-frequency and low-mass for the scalar perturbation, we find $K<0$ enhances
the superradiance scattering within the broader frequency range, compared to
$K=0$ while $K>0$ suppresses within the narrower frequency range. As a result,
the radiation and dark matter around the rotating BH act as amplifier and
attenuator for the massive scalar superradiance, respectively. This is while
the dust has a twofold role because of admitting both signs of $K$. Through
stability analysis in the light of the BH bomb mechanism, we show in the
presence of dark matter, the instability regime of standard Kerr BH ($K=0$)
gets improved in favor of stabilization while the radiation and dust do not
affect it. In other words, by taking the dark matter fluid around BH into
account, we obtain a broader regime that allows the massive scalar field
dynamic to enjoy superradiant stability.
