The definition for frugal is "Thrifty, cheap." Used in a sentence: The frugal shopper only bought items that were on sale. The definition for corrosive is "bitingly sarcastic.", the definition for naive is "Lacking worldy wisdom.", and the definition for supple is "Flexible."

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 aerate is "to supply with air.", the definition for obnoxious is "Highly offensive.", and the definition for trove is "Valuable collection."

The definition for pathos is "Sympathetic pity." Used in a sentence: The soldiers cherished the kindly Nurse Nightingale for her pathos. The definition for buffoonery is "foolish behavior.", the definition for composed is "Calm.", and the definition for futile is "Without purpose, completely ineffective."

The definition for mundane is "Practical, ordinary." Used in a sentence: The flighty Caroline could not be troubled with mundane tasks such as paying her bills. The definition for camaraderie is "spirit of friendship.", the definition for foil is "One that enhances or underscores by contrast.", and the definition for cunning is "Showing clever insight."

The definition for illuminate is "To make clear." Used in a sentence: Her excellent lecture illuminated the complicated subject of nuclear physics. The definition for lenient is "mild or tolerant.", the definition for drab is "Dull, monotonous.", and the definition for manifest is "Obvious."