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 negate is "to make invalid.", the definition for punctual is "On time.", and the definition for euphoria is "Feeling of great happiness."

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 perception is "capacity for seeing or understanding.", the definition for heinous is "Shockingly evil.", and the definition for revoke is "To cancel by taking back."

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 incongruous is "not harmonious, incompatible.", the definition for obnoxious is "Highly offensive.", and the definition for salvage is "To save from ruin."

The definition for ploy is "A contrived plan." Used in a sentence: Sarah thought George's ploy of borrowing her notes was a cowardly way to ask her out. The definition for belated is "past the normal or proper time.", the definition for corroborate is "To support with evidence.", and the definition for rancorous is "Marked by deep ill–will."

The definition for melodious is "Having a pleasing melody." Used in a sentence: The melodious sounds of the symphony soothed Tim after his trying day. The definition for hedonism is "belief that pleasure is the sole aim of life.", the definition for gargantuan is "Gigantic.", and the definition for belated is "Past the normal or proper time."