150 entries under substantial topic. ×
| physical(adjective, strong, hard, compact) | |
| plenty(great, rich, abundant, extensive) | |
| primary(order, big, important, significant) | |
| reinforced(adjective, strong, sound, tough, solid) | |
| relevant(adjective, great, big, significant) | |
| salient(big, important, significant, valuable) | |
| secure(adjective, strong, hard, sound, tough) | |
| sinewy(adjective, strong, sound, tough, solid) | |
| something(big, outstanding, significant, valuable) | |
| standout(great, extraordinary, big, significant) | |
| stark(adjective, strong, sound, tough, solid) | |
| staunch(adjective, strong, sound, tough, solid) | |
| sufficient(great, rich, plenty, plentiful) | |
| tight(adjective, strong, hard, compact) | |
| towering(adjective, severe, large, huge) | |
| underlined(adjective, big, unusual, important, exceptional) | |
| valuable(big, significant, large, vital) | |
| big deal(expression, big) | |
| brick wall(expression, adjective, strong, hard) | |
| determining(big, significant, valuable, vital) |
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| APA | Smart Define. (2016). heavy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, heavy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>. |
| MLA | Smart Define. "heavy thesaurus" 25 January 2016. Web. 25 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms> |