vitiated

/ˈvɪʃiˌeɪtɪd/
adjective
  1. Spoiled, weakened, or reduced in quality or effectiveness.
    • His vitiated argument failed to convince the audience.
    • The vitiated air in the room made everyone feel drowsy.
    • The vitiated soil produced only stunted crops.
  2. Made legally invalid or void.
    • A vitiated will cannot be used to distribute the estate.
    • The court declared the agreement vitiated due to fraud.
    • The vitiated contract was no longer enforceable.
Antonyms
What does "vitiated" mean? | whatsthatwordmean | whatsthatwordmean