The definition for placebo is "An inactive substance used in medical testing." Used in a sentence: Tom, who had taken the placebo, found that his allergy symptoms did not go away. The definition for diffident is "lacking self–confidence.", the definition for entangle is "To involve in trouble.", and the definition for incidental is "Minor."

The definition for corroborate is "To support with evidence." Used in a sentence: "Unless you can corroborate your story, it will not be admissible in court," the attorney told his client. The definition for heed is "to pay attention to.", the definition for elusive is "Hard to grasp.", and the definition for pallid is "Lacking color."

The definition for impenitent is "Lacking remorse." Used in a sentence: The impenitent criminal received a harsh penalty, but his remorseful accomplice was released. The definition for straddle is "to favor opposing sides.", the definition for meticulous is "Extrememly careful regarding details.", and the definition for intricate is "Having complex and interrelated parts."

The definition for demeanor is "Behavior towards others." Used in a sentence: Carlos was well liked because of his charming demeanor. The definition for censure is "to find fault with.", the definition for flaunt is "To display showily.", and the definition for pallid is "Lacking color."

The definition for grandiose is "With an affectation of grandeur." Used in a sentence: The sweeping, grandiose staircase looked preposterous in the modest entry hall. The definition for buffer is "protective barrier.", the definition for perception is "Capacity for seeing or understanding.", and the definition for serenity is "Calmness."