The definition for derivative is "Lacking originality." Used in a sentence: Critics panned the movie as a derivative version of last year's Best Picture. The definition for compulsion is "an irresistible impulse.", the definition for anthology is "A collection of selected literary pieces.", and the definition for diffident is "Lacking self–confidence."

The definition for moderate is "Tending toward the average." Used in a sentence: The best–selling writer was disappointed; his new novel was only a moderate success. The definition for duplicity is "deceptive thought, speech, or action.", the definition for serenity is "Calmness.", and the definition for celebrated is "Widely known, respected."

The definition for stifle is "To repress or discourage." Used in a sentence: Amy tried ineffectively to stifle her giggles after she read Susan's note in class. The definition for mandate is "an official order or commission to do something.", the definition for perception is "Capacity for seeing or understanding.", and the definition for raspy is "rough, grating."

The definition for incongruous is "Not harmonious, incompatible." Used in a sentence: Sadie's cowboy hat was incongruous with her black cocktail dress. The definition for opportune is "suitable or convenient.", the definition for incumbent is "Necessary as a duty or responsibility.", and the definition for accentuate is "To emphasize."

The definition for repel is "To resist, reject." Used in a sentence: The soldiers made a massive charge to repel the invaders. The definition for buffer is "protective barrier.", the definition for impenitent is "Lacking remorse.", and the definition for mediate is "To come between parties in order to reconcile."