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 placebo is "an inactive substance used in medical testing.", the definition for censure is "To find fault with.", and the definition for clarity is "Clearness."

The definition for adversary is "One who opposes or resists." Used in a sentence: Franklin hoped to defeat his adversary in the afternoon's tennis match. The definition for fragile is "delicate.", the definition for buffoonery is "Foolish behavior.", and the definition for diffident is "Lacking self–confidence."

The definition for absolve is "To forgive; to free from guilt." Used in a sentence: Marta felt greatly relieved after her mother absolved her for breaking the vase. The definition for rail is "to scold in harsh language.", the definition for dubious is "Questionable.", and the definition for nurture is "To further the development of."

The definition for salvage is "To save from ruin." Used in a sentence: After the fire, Mrs. Han tried to salvage her family photos from the wreckage. The definition for scamper is "to run quickly.", the definition for oblivious is "Lacking awareness.", and the definition for incisive is "Impressively direct and decisive."

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 retroactive is "effective as of a prior time or condition.", the definition for exalt is "To elevate by praise.", and the definition for lenient is "Mild or tolerant."