Antonyms — Identify the option that is the closest opposite in meaning to ‘‘GULLIBLE’’ (credulous vs. skeptical; common vocabulary trap).

Given data

• Adjective: GULLIBLE = easily deceived; credulous
• Options: Incredulous; Fickle; Easy; Stylish

Concept/ApproachThe antonym must show skepticism or unwillingness to believe without proof. ‘‘Incredulous’’ means disbelieving; skeptical.

Step-by-step reasoningGullible (believes too readily) ↔ Incredulous (hard to convince).‘‘Fickle’’ = changeable; ‘‘Easy’’ and ‘‘Stylish’’ are off-topic semantically.

Verification/AlternativePairing check: credulous ↔ incredulous is a standard antonym pair.

Common pitfallsReading ‘‘incredulous’’ as ‘‘incredible’’ (amazing); they differ in meaning and part of speech.

Final AnswerIncredulous