Related by context. Frequent words. (Click for all words.) 56 kryptonite 45 indestructible 42 Superman 41 Teflon 39 Kevlar 38 superhero 37 Hulk 36 Superhero 36 Ace 35 spandex 35 Bizarro 35 unbreakable 35 Velcro 35 stretchy 34 superman 33 invulnerable 33 Lycra 33 elastic 33 badass 32 Popeye 32 alloy 32 Spandex 32 invincible 31 armor 31 Wolverine 31 Bicycle 31 Lex Luthor 31 Spidey 31 Iron Man 31 Aquaman 31 Shred 31 Ninja 31 glue 31 Fantastic Four 30 Bike 30 nylon 30 foam 30 Incredible Hulk 30 titanium 30 Shredder 30 alter ego 30 Green Lantern 30 invincibility 30 Dominator 29 urethane 29 Deadpool 29 Darth Vader 29 cyborg 29 demon 29 straps 29 immortal 29 Godzilla 29 Scooter 29 polymer 29 swagger 28 Ricochet 28 Durability 28 Spiderman 28 exoskeleton 28 silicone 28 Magneto 28 superheroes 28 immortality 28 Chainsaw 28 Titanium 28 supernatural powers 27 Superheroes 27 outer shell 27 Bruce Banner 27 Dynamite 27 superhuman 27 Megatron 27 Super Hero 27 rubbery 27 Zip 27 foams 27 elemental 27 relentlessness 27 Batman 27 mojo 27 Zipper 27 adhesive 27 villain 27 plastic 27 unshakable 27 ageless 27 lasts forever 27 Joker 27 Supergirl 27 intergalactic 26 Grasshopper 26 bionic 26 Nemesis 26 metallic 26 malleable 26 wimpy 26 Daredevil 26 Bag 26 mystique 26 Robocop 26 epoxy