  A {\gamma}-ray linear polarization measurement has been performed to directly
determine the parities for the levels in 146Gd nucleus. High-spin states in
this nucleus were populated in a reaction 115In + 34S at 140 MeV incident
energy. Linearly polarized {\gamma} - rays emitted from oriented states were
measured using a Compton polarimeter consisting of an array of 8
Compton-suppressed Clover detectors. Unambiguous assignments of the spin and
parity have been made for most of the observed levels and changes made in the
previously reported spin-parity assignments for a few levels. Shell model
calculations performed with judicious truncation over the {\pi}(gdsh) valence
space interpret the structure of only the low-lying levels up to J{\pi} = 19+
and 9-. N = 82 neutron-core breaking is found to be essential for high spin
states with excitation energies Ex > 7 MeV.
