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 nurture is "to further the development of.", the definition for naive is "Lacking worldy wisdom.", and the definition for avian is "Relating to birds."

The definition for incidental is "Minor." Used in a sentence: The accountant advised Justine not to report her incidental expenses. The definition for inviolable is "secure from assault of trespass.", the definition for heed is "To pay attention to.", and the definition for moderate is "Tending toward the average."

The definition for melee is "A tumultuous fight among several people." Used in a sentence: After the game, a melee broke out between fans of the opposing teams. The definition for intricate is "having complex and interrelated parts.", the definition for impenitent is "Lacking remorse.", and the definition for regurgitate is "To pour out or throw back."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for placebo is "an inactive substance used in medical testing.", the definition for accessible is "Easy to reach or to approach.", and the definition for repel is "To resist, reject."

The definition for unscrupulous is "Lacking principles." Used in a sentence: The unscrupulous salesman was fired for lying to his customers. The definition for diffident is "lacking self–confidence.", the definition for fidelity is "State of being faithful.", and the definition for accentuate is "To emphasize."