The definition for catastrophic is "Relating to extreme misfortune." Used in a sentence: The effects of the massive hurricane were catastrophic. The definition for mediate is "to come between parties in order to reconcile.", the definition for flagrant is "Noticeably offensive.", and the definition for redouble is "To make twice as great."

The definition for penurious is "Extrememly stingy." Used in a sentence: Ebenezer Scrooge was most penurious, refusing to give even a penny to charity. The definition for insinuate is "to suggest indirectly.", the definition for pretense is "False intention or purpose.", and the definition for buffer is "Protective barrier."

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 exception is "a case to which the rule does not apply.", the definition for comparable is "Similar, equivalent.", and the definition for gruff is "Rough or stern in manner or speech."

The definition for elusive is "Hard to grasp." Used in a sentence: The words to the song are elusive, as the singer tends to mumble. The definition for fragile is "delicate.", the definition for commemorate is "To mark by a ceremony.", and the definition for comprehensible is "Understandable."

The definition for extant is "Currently existing." Used in a sentence: Some consider Clint Eastwood the greatest extant American director. The definition for adversary is "one who opposes or resists.", the definition for regale is "To amuse.", and the definition for elusive is "Hard to grasp."