'Irr-' Adjectives Gap Fill Quiz

The prefix ir- often means "not". Choose the best word for each sentence.

irrational - irreconcilable - irregular - irrelevant - irreligious - irreplaceable - irresistible - irrespective - irresponsible - irreversible


  1. Don't break that antique vase. It's .
  2. I'm trying to cut down on sweets, but that cake was .
  3. It was hard to stack the pieces of wood because they were all shapes.
  4. The couple said they had to get a divorce because they had differences.
  5. The man suffered damage to his eyes from not wearing eye protection in the factory.
  6. We won't talk about that now because it's to our discussion.
  7. The people didn't believe in God at all; they were .
  8. The graduates were lined up in alphabetical order, of their fields of study.
  9. It was to leave the car unlocked in the parking lot.
  10. Doing things is one of the symptoms of Alzheimer's.

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