Definition of overpopulous in US English:

overpopulous

adjective

  • Too full of people or inhabitants; overpopulated.

Origin

Early 17th century; earliest use found in Owen Felltham (?1602–1668), essayist and poet. From over- + populous.

Pronunciation

overpopulous

/ˌəʊvəˈpɒpjʊləs/