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 incisive is "impressively direct and decisive.", the definition for grandiose is "With an affectation of grandeur.", and the definition for periodic is "Occurring at regular intervals."

The definition for manifest is "Obvious." Used in a sentence: James finally made his affection manifest when he handed Jessica a red rose. The definition for augment is "to make greater.", the definition for penurious is "Extrememly stingy.", and the definition for ploy is "A contrived plan."

The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for revoke is "to cancel by taking back.", the definition for awe is "Emotion combining dread and wonder.", and the definition for incisive is "Impressively direct and decisive."

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 induce is "to influence or cause.", the definition for iridescent is "Having a lustrous or attractivve quality.", and the definition for frugal is "Thrifty, cheap."

The definition for methodical is "Performed in an orderly manner." Used in a sentence: Oscar's methodical approach exasperated his free–spirited friend Ben. The definition for penurious is "extrememly stingy.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for catastrophic is "Relating to extreme misfortune."