The definition for benefactor is "One who offers financial help." Used in a sentence: Michael's aunt and benefactor paid his college tuition. The definition for retroactive is "effective as of a prior time or condition.", the definition for combative is "Eager to fight.", and the definition for periodic is "Occurring at regular intervals."

The definition for finite is "Having definite limits." Used in a sentence: The exasperated mother had finite patience for her toddler's tantrums. The definition for comparable is "similar, equivalent.", the definition for unscrupulous is "Lacking principles.", and the definition for ethical is "Conforming to accepted standards."

The definition for derivative is "Lacking originality." Used in a sentence: Critics panned the movie as a derivative version of last year's Best Picture. The definition for fickle is "lacking constancy, changeable.", the definition for garish is "Offensively bright.", and the definition for fidelity is "State of being faithful."

The definition for incongruous is "Not harmonious, incompatible." Used in a sentence: Sadie's cowboy hat was incongruous with her black cocktail dress. The definition for exasperation is "the state of being irritated.", the definition for servile is "Fearfully submissive.", and the definition for adversary is "One who opposes or resists."

The definition for liability is "A person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage." Used in a sentence: Kevin's growing fatigue was a liability as he attempted to climb the steep hill. The definition for oblivious is "lacking awareness.", the definition for sociable is "Inclined to seek companionship.", and the definition for rancorous is "Marked by deep ill–will."