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 opportune is "suitable or convenient.", the definition for extol is "To praise highly.", and the definition for augment is "To make greater."

The definition for extant is "Currently existing." Used in a sentence: Some consider Clint Eastwood the greatest extant American director. The definition for combustion is "act of burning.", the definition for immoderate is "Beyond usual or proper limits.", and the definition for punctual is "On time."

The definition for obnoxious is "Highly offensive." Used in a sentence: The manager asked the obnoxious diner to leave the restaurant. The definition for deferment is "the act of delaying.", the definition for futile is "Without purpose, completely ineffective.", and the definition for liability is "A person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage."

The definition for turpitude is "Essential baseness, depravity." Used in a sentence: The turpitude of the villain in the movie offended most audiences. The definition for epistolary is "contained or carried on in letters.", the definition for indecorous is "In bad taste.", and the definition for inflammatory is "Tending to excite anger."

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 iridescent is "having a lustrous or attractivve quality.", the definition for mandate is "An official order or commission to do something.", and the definition for dubious is "Questionable."