Adeyanju, A.A.Tunç, C.2025-05-102025-05-1020230430-320210.1007/s11565-022-00454-12-s2.0-85141441880https://doi.org/10.1007/s11565-022-00454-1https://hdl.handle.net/20.500.14720/3187We establish a set of conditions for the uniform-ultimate boundedness of solutions to a certain system of second order differential equations with variable delay using Lypunov–Krasovskii functional as a basic tool. This result is an addition to the body of literature in many ways. In addition, we provide an example to demonstrate the correctness of our result. © 2022, The Author(s) under exclusive license to Università degli Studi di Ferrara.eninfo:eu-repo/semantics/closedAccessBoundednessLypunov–Krasovskii FunctionalSecond OrderArticle692N/AQ2605614