Vocabulary Quiz: I Words
Test your knowledge of 20 words starting with I
Immense
Extremely large or great, especially in scale or degree.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Huge
Impede
To delay or prevent (someone or something) by obstructing them.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Hinder
Imperious
Assuming power or authority without justification; arrogant and domineering.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Peremptory
Impertinent
(1) Not showing proper respect; rude. (2) Not pertinent to a particular matter; irrelevant.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: (1) Insolent
Impetuous
Acting or done quickly and without thought or care.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Impulsive
Improvise
To create and perform (music, drama, or verse) spontaneously or without preparation.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Extemporize
Impudent
Not showing due respect for another person; impertinent.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Insolent
Impugn
To dispute the truth, validity, or honesty of (a statement or motive); call into question.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Challenge
Incoherent
Similar to: disconnected, disjointed
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Disconnected
Indefatigable
(Of a person or their efforts) persisting tirelessly.
Which word is most similar in meaning?
Show Answer
✓ Correct Answer: Tireless
About This Quiz
This quiz covers intermediate-level SAT vocabulary words that start with the letter I. Mastering these words will help you succeed on the SAT Reading and Writing sections. Each question tests your understanding of word meanings through synonym and antonym identification, common formats on the Digital SAT. Practice regularly to build your vocabulary and improve your score.