Definition: unknown or unnamed.

Peter received an ______________ note in his locker. He wondered who had written it.

Synonyms: incognito, nameless, secret

Antonyms: known, recognized

Definition: smart and perceptive.

You have to be pretty _____________ to get an A in Professor Del Toro's class. The material is hard and requires you to think outside the box.

Synonyms: bright, insightful

Antonyms: idiotic, ignorant, stupid

Definition: one who looks on or observes; a person present but not taking part.

The ___________ who saw one boy bully another decided to tell her teacher.

Synonyms: observer, spectator, witness

Antonyms: participant

Definition: a person killed or injured in a war or accident.

Amazingly, there was not a single ___________ in the plane crash.

Synonyms: sufferer, victim

Definition: dead.

The _____________ soldier was given a full military funeral.

Synonyms: dead, departed, late

Antonyms: alive

Definition: thoroughly; totally.

Camille is just a ____________ nice girl. She's always assisting people who need help.

Synonyms: absolutely, entirely, totally

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: honor or respect shown publicly.

All the monks paid ________________ to their guru.

Synonyms: praise, reverence, tribute

Antonyms: dishonor

Definition: to move with great speed; to rush violently.

The rocket will ________ through Earth's atmosphere and circle the planet twice before returning.

Synonyms: barrel, speed

Definition: genuine or justifiable.

I felt that my complaint about the heat in our classroom was _____________, but the custodian wouldn't listen to me.

Synonyms: fair, justified, rightful

Antonyms: unjustified, illegitimate

Definition: causing death or made to cause death.

Socrates was forced to swallow a ____________ dose of poison.

Synonyms: deadly, fatal, poisonous

Antonyms: harmless

Definition: the great size or importance of something.

Harold is often overwhelmed by the ____________ of the universe.

Synonyms: greatness, significance

Antonyms: insignificance, unimportance

Definition: heavy, dull or boring; old-fashioned.

I helped my mom replace her ______________ old wardrobe with some stylish new clothes.

Synonyms: dreary

Antonyms: exciting, interesting, lively

Definition: greatest; highest; farthest.

Respecting people who are different from you is of the _________________ importance.

Synonyms: absolute, maximum

Antonyms: little, slightest