The definition for serenity is "Calmness." Used in a sentence: The serenity of the glassy sea soothed the sailors after the big storm. The definition for straddle is "to favor opposing sides.", the definition for facade is "false or superficial appearance.", and the definition for dubious is "Questionable."

The definition for disdain is "Feeling of contempt." Used in a sentence: The arrogant writer did not hide his disdain for his uneducated dinner companion. The definition for corrective is "intended to correct.", the definition for immoderate is "Beyond usual or proper limits.", and the definition for surplus is "Excess."

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 ecstatic is "overwhelmingly emotional.", the definition for sociable is "Inclined to seek companionship.", and the definition for meticulous is "Extrememly careful regarding details."

The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for ethical is "conforming to accepted standards.", the definition for prominence is "Importance.", and the definition for appraise is "To evaluate the worth of."

The definition for repel is "To resist, reject." Used in a sentence: The soldiers made a massive charge to repel the invaders. The definition for stealth is "the act of moving secretly or unnoticed.", the definition for extol is "To praise highly.", and the definition for revive is "To bring back to life."