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 proximity is "closeness.", the definition for promote is "To contribute to the growth or prosperity of.", and the definition for revive is "To bring back to life."

The definition for catastrophic is "Relating to extreme misfortune." Used in a sentence: The effects of the massive hurricane were catastrophic. The definition for finite is "having definite limits.", the definition for retroactive is "effective as of a prior time or condition.", and the definition for induce is "To influence or cause."

The definition for gruff is "Rough or stern in manner or speech." Used in a sentence: Heidi's grandfather was gruff, barking stern orders and hardly smiling. The definition for advantageous is "giving an advantage.", the definition for oblivious is "Lacking awareness.", and the definition for derivative is "Lacking originality."

The definition for appalling is "Inspiring dismay or disgust." Used in a sentence: Hector found his roommate's habit of leaving his dirty socks on the floor appalling. The definition for incumbent is "necessary as a duty or responsibility.", the definition for defiant is "Showing bold resistance.", and the definition for buffer is "Protective barrier."

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 aesthete is "person having or affecting sensitivity to beauty.", the definition for obnoxious is "Highly offensive.", and the definition for regurgitate is "To pour out or throw back."