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vitiate

vi·ti·ate

vitiate

 
 
pronunciation:
vI shi eIt
features:
Word Combinations (verb)
part of speech: transitive verb
inflections: vitiates, vitiating, vitiated
definition 1: to make (a legal document or the like) ineffective or invalid.
This new evidence vitiates your testimony.
synonyms:
annul, invalidate, nullify, undo, void
similar words:
abrogate, cancel, countermand, rescind, retract, revoke, sabotage, undermine
definition 2: to harm the quality of; mar; spoil.
The recent bombing vitiated the climate of reconciliation.
synonyms:
impair, mar, spoil, taint, tarnish
antonyms:
enhance
similar words:
adulterate, alloy, befoul, besmirch, blacken, blight, contaminate, corrupt, cut, defile, dilute, foul, pollute, smirch, soil, stain, sully, weaken
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derivations: vitiable (adj.), vitiation (n.)