Choose the correct one-word substitution for:
"A person who cannot make a mistake."
Show answer & explanation
Correct answer: A
Explanation
Correct Answer
Infallible
Explanation
The phrase refers to someone who is completely incapable of erring, making errors, or being wrong in their judgments or actions. To solve this quickly for an exam, look closely at the Latin prefixes and roots of the options.
The word "Infallible" combines the negative prefix in- (not) with the root fallere (to deceive or fail). This gives it the exact definition of being incapable of making a mistake.
The other choices do not fit this definition. The word "invincible" means too powerful to be defeated or overcome. The word "irresistible" means too attractive or tempting to be resisted. The word "incredible" means impossible or difficult to believe. Therefore, Option 1 is the correct choice.
Key Points
Identifying correct vocabulary substitutions requires matching the specific trait of errorlessness with its corresponding negative linguistic prefix.
The word infallible describes an absolute inability to fail or make errors, while invincible relates purely to physical or strategic power.