The definition for negate is "To make invalid." Used in a sentence: Paula negated Tiffany's argument by proving that her main premise was false. The definition for obnoxious is "highly offensive.", the definition for incumbent is "Necessary as a duty or responsibility.", and the definition for catastrophic is "Relating to extreme misfortune."

The definition for regale is "To amuse." Used in a sentence: My clever brother Jeffrey regaled the dinner guests with tales of his adventures. The definition for hedonism is "belief that pleasure is the sole aim of life.", the definition for comparable is "Similar, equivalent.", and the definition for regale is "To amuse."

The definition for lurid is "Causing horror, shocking." Used in a sentence: The lurid photos of the crime scene upset the jury. The definition for flagrant is "noticeably offensive.", the definition for cunning is "Showing clever insight.", and the definition for heed is "To pay attention to."

The definition for incidental is "Minor." Used in a sentence: The accountant advised Justine not to report her incidental expenses. The definition for methodical is "performed in an orderly manner.", the definition for manifest is "Obvious.", and the definition for serenity is "Calmness."

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 clairvoyance is "ability to see things beyond ordinary perception.", the definition for composed is "Calm.", and the definition for inflammatory is "Tending to excite anger."