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 pallid is "lacking color.", the definition for impenitent is "Lacking remorse.", and the definition for abate is "Become less in amount or intensity."

The definition for negate is "To make invalid." Used in a sentence: Paula negated Tiffany's argument by proving that her main premise was false. The definition for oblivious is "lacking awareness.", the definition for turpitude is "Essential baseness, depravity.", and the definition for ethical is "Conforming to accepted standards."

The definition for colossal is "Immense, enormous." Used in a sentence: After pushing with all his might, Frank realized he could never move the colossal boulder. The definition for exasperation is "the state of being irritated.", the definition for corrective is "Intended to correct.", and the definition for servile is "Fearfully submissive."

The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for fragile is "delicate.", the definition for clarity is "Clearness.", and the definition for demean is "To lower status."

The definition for pallid is "Lacking color." Used in a sentence: The nurse was worried by the patient's pallid face and shallow breathing. The definition for aesthete is "person having or affecting sensitivity to beauty.", the definition for illuminate is "To make clear.", and the definition for clarity is "Clearness."