The definition for rancorous is "Marked by deep ill–will." Used in a sentence: The rancorous competition between the two chess clubs actually ended in a brawl. The definition for fickle is "lacking constancy, changeable.", the definition for rehash is "To discuss again.", and the definition for dubious is "Questionable."

The definition for advantageous is "Giving an advantage." Used in a sentence: The house's location in the best school district was advantageous to the seller. The definition for corrosive is "bitingly sarcastic.", the definition for perception is "Capacity for seeing or understanding.", and the definition for fragile is "Delicate."

The definition for scapegoat is "Someone who bears the blame for others." Used in a sentence: Audrey used her innocent baby brother as a scapegoat for the missing cookies. The definition for revive is "to bring back to life.", the definition for flaunt is "To display showily.", and the definition for procrastinate is "To put off intentionally."

The definition for inviolable is "Secure from assault of trespass." Used in a sentence: Situated on a mountain, with sixteen–foot walls, the castle was inviolable. The definition for diffident is "lacking self–confidence.", the definition for implausible is "Unbelievable.", and the definition for aerate is "To supply with air."

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 repentant is "feeling regret.", the definition for rehash is "To discuss again.", and the definition for absolve is "To forgive; to free from guilt."