  We report on the study of unusual spin glass properties in the geometrically
frustrated pyrochlore Tb$_{2}$Mo$_{2}$O$_{7}$, $T$$_{g}$$\simeq$24 K. The
analysis of the nonlinear part of dc and complex susceptibilities, near the
glass transition regime, suggests the existence of a statistical distribution
of relaxation times in short-range ordered ferromagnetic clusters. In addition,
the magnetic spins are not sufficiently frozen below the glass transition
temperature; apparently, responsible for the non-equilibrium scaling behavior
of the static critical exponents of nonlinear susceptibilities. Our report is
expected to shed new light in understanding the freezing properties of
frustrated pyrochlores with short range ferromagnetic interactions.
