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 catastrophic is "relating to extreme misfortune.", the definition for mediate is "To come between parties in order to reconcile.", and the definition for promote is "To contribute to the growth or prosperity of."

The definition for elate is "To fill with joy." Used in a sentence: It elated Margaret to be awarded first place in the science fair. The definition for awe is "emotion combining dread and wonder.", the definition for buffoonery is "Foolish behavior.", and the definition for incidental is "Minor."

The definition for advantageous is "Giving an advantage." Used in a sentence: The house's location in the best school district was advantageous to the seller. The definition for obnoxious is "highly offensive.", the definition for grandiose is "With an affectation of grandeur.", and the definition for ethical is "Conforming to accepted standards."

The definition for penurious is "Extrememly stingy." Used in a sentence: Ebenezer Scrooge was most penurious, refusing to give even a penny to charity. The definition for gravity is "importance, significance.", the definition for penurious is "Extrememly stingy.", and the definition for mandate is "An official order or commission to do something."

The definition for prominence is "Importance." Used in a sentence: The singer's prominence ensured that the concert would sell out. The definition for melee is "a tumultuous fight among several people.", the definition for awe is "Emotion combining dread and wonder.", and the definition for insolence is "Boldness or rudeness."