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 iridescent is "having a lustrous or attractivve quality.", the definition for benefactor is "One who offers financial help.", and the definition for incumbent is "Necessary as a duty or responsibility."

The definition for ramble is "To wander, physically or in language." Used in a sentence: Professor Tan rambled during his lectures, frequently straying from the subject. The definition for illuminate is "to make clear.", the definition for extant is "Currently existing.", and the definition for extenuating is "Partially excusing."

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 gruff is "rough or stern in manner or speech.", the definition for fragile is "Delicate.", and the definition for mandate is "An official order or commission to do something."

The definition for archaic is "Characteristic of an earlier time." Used in a sentence: In the world of high fashion, two–year–old shoes are considered positively archaic. The definition for promote is "to contribute to the growth or prosperity of.", the definition for fidelity is "State of being faithful.", and the definition for procrastinate is "To put off intentionally."

The definition for elusive is "Hard to grasp." Used in a sentence: The words to the song are elusive, as the singer tends to mumble. The definition for turpitude is "essential baseness, depravity.", the definition for salvage is "To save from ruin.", and the definition for apathetic is "Showing little or no emotion."