The definition for incumbent is "Necessary as a duty or responsibility." Used in a sentence: It was incumbent on Jack to attend his father's retirement party. The definition for corrosive is "bitingly sarcastic.", the definition for futile is "Without purpose, completely ineffective.", and the definition for implement is "To carry out or accomplish."

The definition for euphoria is "Feeling of great happiness." Used in a sentence: Cassandra was overcome with euphoria when she met her long–lost sister. The definition for scapegoat is "someone who bears the blame for others.", the definition for turpitude is "Essential baseness, depravity.", and the definition for iridescent is "Having a lustrous or attractivve quality."

The definition for pretense is "False intention or purpose." Used in a sentence: The jewel thief entered the mansion under the pretense of fixing a leaky faucet. The definition for inauspicious is "not favorable.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for grandiose is "With an affectation of grandeur."

The definition for induce is "To influence or cause." Used in a sentence: The loud blast of the cannon induced an avalanche. The definition for entangle is "to involve in trouble.", the definition for composed is "Calm.", and the definition for flaw is "An imperfection."

The definition for catastrophic is "Relating to extreme misfortune." Used in a sentence: The effects of the massive hurricane were catastrophic. The definition for deferment is "the act of delaying.", the definition for regurgitate is "To pour out or throw back.", and the definition for eulogy is "Speech or writing in praise of deceased."