Containing many people or inhabitants; having a large population.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "populous" in a sentence
"At Aginis he entered the Pasi-Tigris, but he proceeded only about nine miles to a village which he describes as populous and flourishing; here he determined to wait, till he received further information respecting the exact route of the army."
"What is life like in populous cities and remote towns villages?"
"The radio spot - running in populous northern Virginia, home to the bulk of the state's moderate and independent voters - features a man and a woman chatting about the Virginia governor's race."