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 disconcert is "to throw into confusion.", the definition for periodic is "Occurring at regular intervals.", and the definition for retroactive is "effective as of a prior time or condition."

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 gruff is "rough or stern in manner or speech.", the definition for retroactive is "effective as of a prior time or condition.", and the definition for censure is "To find fault with."

The definition for scamper is "To run quickly." Used in a sentence: The frightened kitten scampered away from the butterfly. The definition for stifle is "to repress or discourage.", the definition for ethical is "Conforming to accepted standards.", and the definition for diffident is "Lacking self–confidence."

The definition for inflammatory is "Tending to excite anger." Used in a sentence: Garth's inflammatory remarks at the party made Gwen furious. The definition for composed is "calm.", the definition for opportune is "Suitable or convenient.", and the definition for pathos is "Sympathetic pity."

The definition for cunning is "Showing clever insight." Used in a sentence: The general devised a cunning strategy to outfox the enemy. The definition for insolence is "boldness or rudeness.", the definition for awe is "Emotion combining dread and wonder.", and the definition for exception is "A case to which the rule does not apply."