This investigation is devoted to the study of the behavior of generalized entire solutions for a wide class of quasilinear degenerate inequalities modeled on the following prototype with p-Laplacian in the main part $$-{\overset{m}{\underset{i=1}{\sum}}} X_i^*(|\mathbf{X}u|^{p-2} X_i u)\geq |u|^{q-2}u, \ \ x\in {\mathbb{R}}^{n},\ q>1,\ p>1, $$ where ${\mathbb{R}}^{n}$ is a Carnot-Carathéodory metric space, generated by the system of vector fields $\mathbf{X}=(X_1,X_2,..,X_m)$ and $X_i^*$ denotes the formal adjoint of $X_i$ with respect to Lebesgue measure. For the case where $p$ is less than the homogeneous dimension $Q$ we have obtained a sharp a priori estimate for essential supremum of generalized solutions from below which imply some Liouville-type results.