SYN: Failure, dereliction, abandonment, relinquishment, desertion.
ANT: Substitution, supply, superabundance, adherence.
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KEY: Defective.
SYN: Faulty, imperfect, insufficient, deficient, wanting, short.
ANT: Correct, complete, sufficient, full, ample, abundant, satisfactory.
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KEY: Defense.
SYN: Resistance, protection, vindication, plea, justification, excuse, rampart, bulwark, apology, shelter, guard.
ANT: Abandonment, surrender, betrayal, exposure.