The definition for diffident is "Lacking self–confidence." Used in a sentence: The diffident student never raised her hand in class, even when she knew the answer. The definition for dubious is "questionable.", the definition for surplus is "Excess.", and the definition for avian is "Relating to birds."

The definition for accentuate is "To emphasize." Used in a sentence: Carla used red ribbons to accentuate the coppery tones in her hair. The definition for extant is "currently existing.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for unscrupulous is "Lacking principles."

The definition for adversary is "One who opposes or resists." Used in a sentence: Franklin hoped to defeat his adversary in the afternoon's tennis match. The definition for rancorous is "marked by deep ill–will.", the definition for implement is "To carry out or accomplish.", and the definition for compulsion is "An irresistible impulse."

The definition for flagrant is "Noticeably offensive." Used in a sentence: The executive was fired for his flagrant abuse of the company expense account. The definition for pretense is "false intention or purpose.", the definition for melodious is "Having a pleasing melody.", and the definition for benefactor is "One who offers financial help."

The definition for authoritarian is "Favoring absolute obedience to authority." Used in a sentence: Marco's authoritarian mother never allowed him to watch more than one hour of television a day. The definition for prominence is "importance.", the definition for epistolary is "Contained or carried on in letters.", and the definition for recrimination is "A retaliatory accusation."