Temperature　evolution　of　polarization　versus　electric　field　of　(Ba0.4Sr0.6)TiO3　and　(Ba0.9Sr0.1)TiO3　ceramics　was　investigated.　Polarization　characteristics　of　(Ba0.9Sr0.1)TiO3　belong　to　ferroelectrics　with　diffuse　phase　transition　(DPT),　while　the　ones　of　(Ba0.4Sr0.6)TiO3　are　rather　different.　(Ba0.4Sr0.6)TiO3　ceramics　display　very　soft　ferroelectricity　and　extremely　high　dielectric　tunability.　The　long-range　ferroelectric　ordering　in　(Ba0.4Sr0.6)TiO3　ceramics　disappears　completely　below　temperature　T-m　of　maximum　dielectric　permittivity　epsilon(m),　which　is　different　from　normal　DPT　ferroelectrics.　The　special　ferroelectric　behavior　is　hypothesized　to　be　attributed　to　random　arrangements　of　the　distorted　TiO6　octahedra.　(C)　2011　WILEY-VCH　Verlag　GmbH　&　Co.　KGaA,　Weinheim