Multiple choice

Directions: Choose a suitable antonym in the following question.

Invalid

  1. Logical

  2. Null

  3. False

  4. Irrational
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A Correct answer
Explanation

Invalid has multiple meanings: 'not valid' or 'not based on sound reasoning/logic'. While 'valid' would be the precise antonym for the first meaning, 'logical' works as an antonym for the second meaning (irrational/illogical vs logical). Given the available options, logical is the intended answer opposing the 'not based on sound reasoning' sense.

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