| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | dense |
| Synonyms: | bulletproof, close, compact, firm, hard, hermetic, impassable, impermeable, impervious, inviolable, solid, substantial, thick, unpiercable |
| Antonyms: | clear, penetrable, permeable, porous, soft, thin |
| Main Entry: | invulnerable |
| Part of Speech: | adjective |
| Definition: | invincible |
| Synonyms: | bulletproof, impassable, impenetrable, impregnable, indestructible, powerful, secure, strong, unbeatable, untouchable |
| Main Entry: | armored |
| Part of Speech: | adjective |
| Definition: | heavily clad |
| Synonyms: | bulletproof, indestructible, invulnerable, ironclad, protected, shielded, steel-plated, strong, unbreakable |
| Antonyms: | breakable, unarmored, unprotected, weak |