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 advantageous is "giving an advantage.", the definition for rail is "To scold in harsh language.", and the definition for stifle is "To repress or discourage."

The definition for heinous is "Shockingly evil." Used in a sentence: Eduardo's heinous betrayal of Lydia shocked even Latasha, who knew his evil ways. The definition for incongruous is "not harmonious, incompatible.", the definition for fidelity is "State of being faithful.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for incidental is "Minor." Used in a sentence: The accountant advised Justine not to report her incidental expenses. The definition for incidental is "minor.", the definition for commemorate is "To mark by a ceremony.", and the definition for pretense is "False intention or purpose."

The definition for diffident is "Lacking self–confidence." Used in a sentence: The diffident student never raised her hand in class, even when she knew the answer. The definition for opportune is "suitable or convenient.", the definition for regale is "To amuse.", and the definition for gravity is "Importance, significance."

The definition for perception is "Capacity for seeing or understanding." Used in a sentence: His incredible perception made him the best detective on the force. The definition for drub is "to defeat decisively.", the definition for indecorous is "In bad taste.", and the definition for pantomime is "Telling a story through gestures."