  We study a ${U(1)}_R$ symmetric extenstion of supersymmetric standard model
with supersymmetry breaking in the visible as well as hidden sectors.
Specifically we study ${U(1)}_R$ breaking effects parametrized by the gravitino
mass. A special $R$-charge assignment of right-handed neutrinos allows us to
have neutrino Yukawa couplings with the $R$-charged Higgs field, which develops
a tiny vacuum expectation value after the inclusion of $U(1)_R$ symmetry
breaking. Even with O(1) Yukawa couplings, a suitable size of Dirac neutrino
masses can be generated if the gravitino mass is very small,
$m_{3/2}=1\hbox{---}10\,\mathrm{eV}$. Our flipped $R$-charge assignment also
allows a new type of dimension five operator that can induce the proton decay.
It turns out that the proton stability mildly constrains the allowed range of
the gravitino mass: Gravitino heavier than $10 \ \mathrm{keV}$ can evade the
proton decay constraint as well as cosmological ones. In this case, the largest
neutrino Yukawa coupling is comparable to the electron Yukawa. We also
calculate the mass of the pseudo goldsino and its mixing to neutralinos, and
briefly discuss its implications in cosmology and Higgs phenomenology.
