overcrowding

verb (used with or without object)

1. to crowd to an uncomfortable or undesirable excess.

noun

1. a state of being filled with more people or things than is desirable; congestion

verb

1. (tr) to fill (a room, vehicle, city, etc) with more people or things than is desirable

v.1766, from over- + crowd (v.). Related: Overcrowded; overcrowding.