Select the option that expresses the opposite meaning of the underlined word.…

2024

Select the option that expresses the opposite meaning of the underlined word.
The explosive used is of my own formulation, and I can vouch for its efficiency.

  1. A.

    Maintain

  2. B.

    Certify

  3. C.

    Invalidate

  4. D.

    Witness

Attempted by 5 students.

Show answer & explanation

Correct answer: C

Vouch: In this context, "vouch" means to assert or confirm the truth, validity, or quality of something. It is a gesture of guarantee or support.

The word invalidate is the correct antonym, as it directly counters the act of guaranteeing or confirming the truth or efficiency of something.

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