The definition for gruff is "Rough or stern in manner or speech." Used in a sentence: Heidi's grandfather was gruff, barking stern orders and hardly smiling. The definition for apathetic is "showing little or no emotion.", the definition for refurbish is "To brighten or freshen.", and the definition for induce is "To influence or cause."

The definition for melee is "A tumultuous fight among several people." Used in a sentence: After the game, a melee broke out between fans of the opposing teams. The definition for liability is "a person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage.", the definition for serenity is "Calmness.", and the definition for accessible is "Easy to reach or to approach."

The definition for inviolable is "Secure from assault of trespass." Used in a sentence: Situated on a mountain, with sixteen–foot walls, the castle was inviolable. The definition for equitable is "fair and equal.", the definition for archetypal is "Characteristic of the original model or perfect example.", and the definition for oblivious is "Lacking awareness."

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 straddle is "to favor opposing sides.", the definition for genial is "Sympathetic, friendly.", and the definition for induce is "To influence or cause."

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 accentuate is "to emphasize.", the definition for hedonism is "Belief that pleasure is the sole aim of life.", and the definition for trove is "Valuable collection."