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 trove is "valuable collection.", the definition for combustion is "Act of burning.", and the definition for serenity is "Calmness."

The definition for anthology is "A collection of selected literary pieces." Used in a sentence: The writer was thrilled when his story was included in an anthology of American masterpieces. The definition for finite is "having definite limits.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for demeanor is "Behavior towards others."

The definition for buffoonery is "Foolish behavior." Used in a sentence: Clarence, an irrepressible comic, was held after cass for his buffoonery. The definition for rehash is "to discuss again.", the definition for duplicity is "Deceptive thought, speech, or action.", and the definition for fickle is "Lacking constancy, changeable."

The definition for composed is "Calm." Used in a sentence: Although her stomach was in knots, the actress appeared perfectly composed when she took the stage. The definition for flagrant is "noticeably offensive.", the definition for compulsion is "An irresistible impulse.", and the definition for corrosive is "Bitingly sarcastic."

The definition for drab is "Dull, monotonous." Used in a sentence: The drab winter scene made Keisha long for the vibrant colors of spring. The definition for corroborate is "to support with evidence.", the definition for heinous is "Shockingly evil.", and the definition for frugal is "Thrifty, cheap."