Ademola, T. A.Arawomo, P. O.2023-03-202023-03-2020121817-2172ui_art_ademola_generalization_2012Differential Equations and Control Processes 1http://ir.library.ui.edu.ng/handle/123456789/8095Criteria for uniform asymptotic stability, boundedness, uniform ultimate boundedness and asymptotic behaviour of solutions of the most general third order nonlinear differential equations with the restoring nonlinear terms depending explicitly on the independent real variable t are established. The construction a complete Lyapunov function, Lyapunov’s second method, the technique introduced by Antoisewicz [9] and the limit point of Yoshizawa [29] are used to obtain the results. The most recent results of Ademola and Arawomo [1, 2, 3, 4] and results on third order nonlinear differential equations which have been discussed in [18] are particular cases of our results.enThird order nonlinear differential equationsUniform asymptotic stabilityBoundednessAsymptotic behaviour of solutionsArticle