38 entries under impenetrable topic. ×
| compressed(verb, adjective, set, hard, tough) | |
| concentrated(verb, adjective, set, strong, hard) | |
| dense(adjective, set, hard, tough, solid) | |
| thick(adjective, strong, hard, tough, solid) | |
| close(adjective, set, hard, tough, solid) | |
| packed(verb, adjective, close, strong, solid) | |
| crammed(dense, profuse, packed, crowded) | |
| crowded(adjective, set, solid, heavy, deep) | |
| full(dense, profuse, packed, crowded) | |
| tight(adjective, solid, full, dense, profuse) | |
| brimming(dense, profuse) | |
| bristling(dense, profuse) | |
| bursting(dense, profuse) | |
| chock-full(dense, profuse) | |
| heaped(thick, dense, profuse, packed) | |
| impervious(adjective, set, hard, tough, solid) | |
| swarming(dense, profuse) | |
| teeming(dense, profuse) | |
| abundant(dense, profuse) | |
| bushy(dense, profuse) |
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| APA | Smart Define. (2015). condensed thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/condensed/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "condensed thesaurus" https://smartdefine.org/condensed/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, condensed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/condensed/thesaurus/synonyms>. |
| MLA | Smart Define. "condensed thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/condensed/thesaurus/synonyms> |