Unbridled
Rampant, unchecked
Puissant
Having great influence
Unctuous
Cringing, crawling
Stringent
Harsh, strict
Advent
Origin, arrival
Inoculate
Shield, immunize
Usurious
Steep, outrageous
Subvert
Unsettle, overthrow
Rogue
Crook, villain
Surreptitious
Concealed, secret
Ubiquitous
Worldwide, universal
Prowess
Talent, skill
Hindrance
Block, bar, impediment
Allusion
Reference to
Exorbitant
Huge, excessive