  TeV J2032+4130 was the first unidentified source discovered at very high
energies (VHE; E $>$ 100 GeV), with no obvious counterpart in any other
wavelength. It is also the first extended source to be observed in VHE gamma
rays. Following its discovery, intensive observational campaigns have been
carried out in all wavelengths in order to understand the nature of the object,
which have met with limited success. We report here on a deep observation of
TeV J2032+4130, based on 48.2 hours of data taken from 2009 to 2012 by the
VERITAS (Very Energetic Radiation Imaging Telescope Array System) experiment.
The source is detected at 8.7 standard deviations ($\sigma$) and is found to be
extended and asymmetric with a width of 9.5$^{\prime}$$\pm$1.2$^{\prime}$ along
the major axis and 4.0$^{\prime}$$\pm$0.5$^{\prime}$ along the minor axis. The
spectrum is well described by a differential power law with an index of 2.10
$\pm$ 0.14$_{stat}$ $\pm$ 0.21$_{sys}$ and a normalization of (9.5 $\pm$
1.6$_{stat}$ $\pm$ 2.2$_{sys}$) $\times$ 10$^{-13}$TeV$^{-1}$ cm$^{-2}$
s$^{-1}$ at 1 TeV. We interpret these results in the context of multiwavelength
scenarios which particularly favor the pulsar wind nebula (PWN) interpretation.
