Definition: not normal.

The yellow fungus on the trunk of this tree is highly ________. We've never seen anything like it.

Synonyms irregular, unusual, unique

Antonyms natural, normal, typical

Definition: sudden or unexpected.

My brother often does unexpected tricks while biking. Once he did an _________wheelie on a mountain trail!

Synonyms quick, sharp

Antonyms deliberate, gradual

Definition: to speed up, or to cause to speed up.

You ___________a car by pushing down the gas pedal.

Synonyms quicken, speed up

Antonyms check, slow, decelerate

Definition: the cause of serious pain and suffering, or a state of such suffering.

Constant headaches can be considered an ___________________.

Synonyms distress, misery, suffering

Antonyms blessing, comfort

Definition: to astound or stupefy.

Tina wrote a surprise ending to her story, hoping to __________listeners.

Synonyms surprise, astonish

Antonyms bore

Definition: gloomy, harsh, and frightening.

I was scared to go in the abandoned building because it looked so dark and _______________.

Synonyms dreadful, savage, frightful

Antonyms delightful, cheerful

Definition: not willing to believe something.

I tried to tell Becky about my 8-foot-tall boyfriend, but she was ____________________and didn't think I was telling the truth.

Synonyms cynical, skeptical, doubtful

Antonyms credulous, gullible, trusting

Definition: to let someone know; to inform.

When we lost our dog, we sent an email to all our neighbors to _____________them.

Synonyms advise, inform, tell

Definition: to become aware of through any of the senses, especially sight or hearing.

Walking into his house, she could ___________that he had not taken out the garbage in weeks because of the terrible smell.

Synonyms detect, discern, spot

Definition: strong or healthy.

The strong and ___________________bison was able to run as fast as a horse.

Synonyms healthy, strong, sturdy

Antonyms feeble, sickly, weak

Definition: to break or burst.

He used a pin to ___________________ the balloon, and water burst out.

Synonyms bust

Definition: to pound or beat rapidly or violently; to pulsate or vibrate.

I was so nervous before my presentation that I could feel my heart ________ in my chest.

Synonyms beat, pulse

Definition: of very little importance or value.

Our problems seem very __________compared to those of people who don't have enough food.

Synonyms insignificant, commonplace, slight

Antonyms valuable, worthwhile, important

Definition: to move back suddenly as though in pain or fear.

Having cut his arm pretty badly, Wade __________whenever he accidentally touched it.

Synonyms flinch, recoil