Synonyms of overpopulated

1 Syllable
thick
2 Syllables
thronged, dense, legion, jammed, crawling, crowded, many, settled, swarming, peopled, teeming, various
3 Syllables
occupied, numerous, several, overbuilt, populous
4 Syllables
voluminous, overcrowded, multifarious, populated
5 Syllables
multitudinal, multitudinous