The definition for iridescent is "Having a lustrous or attractivve quality." Used in a sentence: The movie star's iridescent presence charmed even the hardened reporter. The definition for unscrupulous is "lacking principles.", the definition for appraise is "To evaluate the worth of.", and the definition for retroactive is "effective as of a prior time or condition."

The definition for appalling is "Inspiring dismay or disgust." Used in a sentence: Hector found his roommate's habit of leaving his dirty socks on the floor appalling. The definition for surplus is "excess.", the definition for recrimination is "A retaliatory accusation.", and the definition for diffident is "Lacking self–confidence."

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 exalt is "to elevate by praise.", the definition for pantomime is "Telling a story through gestures.", and the definition for civility is "Politeness."

The definition for buffoonery is "Foolish behavior." Used in a sentence: Clarence, an irrepressible comic, was held after cass for his buffoonery. The definition for augment is "to make greater.", the definition for inviolable is "Secure from assault of trespass.", and the definition for ecstatic is "Overwhelmingly emotional."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for raspy is "rough, grating.", the definition for exalt is "To elevate by praise.", and the definition for derivative is "Lacking originality."