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 disturb either physically or emotionally; to shake up.

Any mention of the fighting tended to _____________her; she always started to cry.

Synonyms: disturb, trouble, upset

Antonyms: calm, lull, soothe

Definition: not honest; willing to abuse power.

The ____________ businessman accepted bribes in exchange for special favors.

Synonyms: crooked, dishonest, untrustworthy

Antonyms: decent, honest, moral

Definition: to make speechless with amazement.

Al was ___________ when he found out he had won the lottery .

Synonyms: astonish, bewilder, stun

Definition: shockingly noticeable or evident, usually in a disgraceful way.

Annette committed a __________ error: She forgot to put on her seat belt.

Synonyms: striking, undisguised

Antonyms: hidden, concealed

Definition: very dirty; covered with dirt or soot.

The buildings quickly became _____________ because they were next to the industrial buildings and smokestacks.

Antonyms: clean, pure

Definition: unable to read or write.

For centuries, letter writers helped people who were __________ by reading and writing letters for them.

Antonyms: literate

Definition: very angry; furious.

My mom was ___________ when I forgot to pick up my little brother from school.

Synonyms: angry, incensed

Antonyms: happy

Definition: to prowl or lie hidden, as though about to attack.

Don't pretend you weren't eavesdropping; I saw you _____________in the shadows.

Synonyms creep, sneak, snoop

Definition: to think about something carefully; to consider.

It was a tricky situation, and Skyler had to __________ over how to make the right decision.

Synonyms: contemplate, ponder, reflect

Definition: moving about from place to place without settling down.

The old cowboy lived a ________________ lifestyle: He rode from town to town but never stayed anywhere for long