37 entries under impenetrable topic. ×

2
close(adjective, full, tight, dense, profuse)
2
dense(adjective, profuse, crowded, overcrowded)
2
thick(adjective, dense, profuse, packed)
1
abundant(dense, profuse)
1
crowded(adjective, dense, profuse, overcrowded)
1
multitudinous(dense, profuse, crowded, overcrowded)
1
numerous(dense, profuse, crowded, overcrowded)
1
several(dense, profuse, crowded, overcrowded)
1
swarming(adjective, dense, profuse, crowded)
1
teeming(adjective, dense, profuse, crowded)
0
packed(adjective, dense, profuse, crowded)
0
brimming(dense, profuse)
0
bristling(dense, profuse)
0
bursting(dense, profuse)
0
bushy(dense, profuse)
0
chock-full(dense, profuse)
0
compressed(dense, profuse)
0
concentrated(dense, profuse)
0
condensed(dense, profuse)
0
considerable(dense, profuse)
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APASmart Define. (2016). populated thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/populated/thesaurus/synonyms
ChicagoSmart Define. 2016. "populated thesaurus" https://smartdefine.org/populated/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, populated thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/populated/thesaurus/synonyms>.
MLASmart Define. "populated thesaurus" 25 February 2016. Web. 25 September 2026. <https://smartdefine.org/populated/thesaurus/synonyms>