The definition for oblivious is "Lacking awareness." Used in a sentence: Love–struck Charlie was oblivious to everyone but the object of his affection. The definition for beneficial is "helpful.", the definition for colossal is "Immense, enormous.", and the definition for refurbish is "To brighten or freshen."

The definition for iridescent is "Having a lustrous or attractivve quality." Used in a sentence: The movie star's iridescent presence charmed even the hardened reporter. The definition for redouble is "to make twice as great.", the definition for archetypal is "Characteristic of the original model or perfect example.", and the definition for derivative is "Lacking originality."

The definition for punctual is "On time." Used in a sentence: Ron was worried when the usually punctual Amanda was late for the show. The definition for prominence is "importance.", the definition for corrective is "Intended to correct.", and the definition for archetypal is "Characteristic of the original model or perfect example."

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 corroborate is "to support with evidence.", the definition for augment is "To make greater.", and the definition for corrective is "Intended to correct."

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 interminable is "never ending, or seemingly endless.", the definition for incisive is "Impressively direct and decisive.", and the definition for euphoria is "Feeling of great happiness."