  We compute the light antiquark flavor asymmetry in the proton using the
Chiral Quark Model ($\chi_{\rm QM}$). The distribution functions for the light
antiquarks $\bar{d}(x)$ and $\bar{u}(x)$ have been extracted with the help of
experimental data from NuSea/E866 and HERMES for the Bjorken$-x$ range $0.015 <
x < 0.35$ as well from the most recent SeaQuest data for an extended $x$ range
$0.13 < x < 0.45$. Our results on the $\bar{d}(x)-\bar{u}(x)$,
$\frac{\bar{d}(x)}{\bar{u}(x)}$ and Gottfried Integral $I_G$ are in agreement
with the experimental data and confirm the presence of enhanced $\bar{d}$ sea
whose origin is purely non-perturbative based on chiral symmetry breaking in
QCD.
