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 demean is "to lower status.", the definition for advantageous is "Giving an advantage.", and the definition for defiant is "Showing bold resistance."

The definition for pretentious is "Making unjustified claims." Used in a sentence: The pretentious boy said that he was the fastest runner, but he finished last in the race. The definition for revoke is "to cancel by taking back.", the definition for serenity is "Calmness.", and the definition for avian is "Relating to birds."

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 gargantuan is "gigantic.", the definition for gravity is "Importance, significance.", and the definition for incumbent is "Necessary as a duty or responsibility."

The definition for obnoxious is "Highly offensive." Used in a sentence: The manager asked the obnoxious diner to leave the restaurant. The definition for onset is "beginning.", the definition for corroborate is "To support with evidence.", and the definition for apathetic is "Showing little or no emotion."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for naive is "lacking worldy wisdom.", the definition for revive is "To bring back to life.", and the definition for fidelity is "State of being faithful."