30 entries under impenetrable topic. ×

12
crowded(adjective, full, dense, multitude, profuse)
6
multitudinous(adjective, separate, distinct, changeable, dense)
6
numerous(adjective, separate, distinct, abundant, changeable)
5
dense(adjective, full, assemblage, busy, loaded)
4
packed(adjective, full, busy, dense, teeming)
3
profuse(great, big, dense, multitude, considerable)
2
bristling(dense, profuse)
2
bursting(dense, profuse)
2
close(full, busy, dense, loaded, teeming)
2
crammed(full, busy, dense, teeming, profuse)
1
brimming(full, busy, dense, loaded, teeming)
1
chock-full(full, busy, dense, teeming, profuse)
1
considerable(great, big, huge, dense, profuse)
1
frequent(dense, plentiful, profuse, various, varied)
1
great(big, huge, dense, considerable, plentiful)
1
tight(full, busy, dense, loaded, teeming)
0
bushy(dense, profuse)
0
compressed(dense, profuse)
0
concentrated(dense, profuse)
0
condensed(dense, profuse)
<12>
11 years ago|3.4k views|share |citing 
APASmart Define. (2015). populous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/populous/thesaurus/synonyms
ChicagoSmart Define. 2015. "populous thesaurus" https://smartdefine.org/populous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, populous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/populous/thesaurus/synonyms>.
MLASmart Define. "populous thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/populous/thesaurus/synonyms>