Overpopulation :  (noun)

1: too much population [syn: overspill]

avalanche, deluge, embarras de richesses, enough, extravagance, extravagancy, flood, inundation, landslide, lavishness, money to burn, more than enough, overabundance, overaccumulation, overbounteousness, overcopiousness, overdose, overlavishness, overluxuriance, overmeasure, overmuchness, overnumerousness, overplentifulness, overplenty, overprofusion, oversufficiency, oversupply, plenty, plethora, prodigality, redundancy, spate, superabundance, superflux,