Direction: Choose the word that is opposite in meaning (antonym) to the…

An antonym is a word whose meaning is the direct opposite of another word’s meaning. To pick it out among several options, first pin down the specific core sense of the underlined word — not just its general topic — and then find the option that reverses exactly that sense.

Credible means capable of being believed; a credible statement is one that is trustworthy and convincing to a listener.

Applying this to the sentence, unreliable reverses that exact sense: a statement that is unreliable cannot be trusted or believed, which is the precise opposite of a credible statement. This makes unreliable the correct antonym.

• believable carries the same sense as credible (a synonym, not its opposite).

• truthful also implies trustworthiness, aligning with credible rather than opposing it.

• logical describes valid reasoning or consistency of argument, a quality unrelated to whether a statement can be trusted, so it does not oppose credible either.

Hence, the correct antonym of credible is unreliable.