| inhumane(demoniac, annihilative) |
| insane(adjective, silly, mad) |
| intense(adjective, strong, violent, menacing) |
| irrational(adjective, crazy, distracted) |
| jock(adjective, muscular, manly, manlike) |
| jockstrap |
| kooky(adjective, silly, mad, insane) |
| lethiferous(demoniac, annihilative) |
| life and death(expression, idiom, demoniac, annihilative) |
| lion-hearted |
| loco(adjective, crazy, irrational, distracted, hacked) |
| loony(unglued, well-built, potty) |
| lunatic(adjective, silly, mad, insane, potty) |
| macho(adjective, muscular, manly, manlike) |
| mad(adjective, silly, insane) |
| maddened(adjective, crazy, irrational, distracted) |
| male(adjective, muscular, manly, manlike) |
| malevolent(adjective, strong, violent, menacing) |
| malign(adjective, strong, violent, menacing) |
| manful(adjective, strapping, muscular, well-built, manly) |