  This paper reports results from a search for single and multi-nucleon
disappearance from the $^{16}$O nucleus in water within the \snoplus{} detector
using all of the available data. These so-called "invisible" decays do not
directly deposit energy within the detector but are instead detected through
their subsequent nuclear de-excitation and gamma-ray emission. New limits are
given for the partial lifetimes: $\tau(n\rightarrow inv) > 9.0\times10^{29}$
years, $\tau(p\rightarrow inv) > 9.6\times10^{29}$ years, $\tau(nn\rightarrow
inv) > 1.5\times10^{28}$ years, $\tau(np\rightarrow inv) > 6.0\times10^{28}$
years, and $\tau(pp\rightarrow inv) > 1.1\times10^{29}$ years at 90\% Bayesian
credibility level (with a prior uniform in rate). All but the ($nn\rightarrow
inv$) results improve on existing limits by a factor of about 3.
