Barron’s Vocabulary — Letter I Quiz ← Back to A-Z Index 📚 Letter I Barron’s High-Frequency Vocabulary · 238 words · GRE/SAT/IELTS 238 Words ⏱ 10 Min ✅ Instant Feedback 1. What is the meaning of "inscrutable"? difficult to understand sound on judgment underwater explosive apparatus hard; strenuous None Show Hint Correct meaning: difficult to understand 2. What is the meaning of "infantile"? childish agree; be in harmony with; gibe extremely aggressive and militant patriot; warlike chauvinist short stiff hair smell/flavor/temper/language/air/deed/weather/means None Show Hint Correct meaning: childish Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... Loading questions... 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