The definition for heed is "To pay attention to." Used in a sentence: "Heed my advice," the fortuneteller warned Sebastian when he tried to ignore her prophecy. The definition for fickle is "lacking constancy, changeable.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for compulsion is "An irresistible impulse."

The definition for insolence is "Boldness or rudeness." Used in a sentence: The boy's insolence to the policeman embarrassed his mother. The definition for belated is "past the normal or proper time.", the definition for impenitent is "Lacking remorse.", and the definition for surplus is "Excess."

The definition for apathetic is "Showing little or no emotion." Used in a sentence: Carmine was concerned about his usually cheerful brother's apathetic attitude. The definition for obnoxious is "highly offensive.", the definition for implement is "To carry out or accomplish.", and the definition for supple is "Flexible."

The definition for rancorous is "Marked by deep ill–will." Used in a sentence: The rancorous competition between the two chess clubs actually ended in a brawl. The definition for induce is "to influence or cause.", the definition for cunning is "Showing clever insight.", and the definition for corrosive is "Bitingly sarcastic."

The definition for adversary is "One who opposes or resists." Used in a sentence: Franklin hoped to defeat his adversary in the afternoon's tennis match. The definition for entangle is "to involve in trouble.", the definition for discern is "To recognize as separate as distinct.", and the definition for fragile is "Delicate."