The definition for ethical is "Conforming to accepted standards." Used in a sentence: Mary did the ethical thing and turned in the diamond necklace she found. The definition for unscrupulous is "lacking principles.", the definition for advantageous is "Giving an advantage.", and the definition for accentuate is "To emphasize."

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 comparable is "similar, equivalent.", the definition for appraise is "To evaluate the worth of.", and the definition for accentuate is "To emphasize."

The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for oblivious is "lacking awareness.", the definition for hedonism is "Belief that pleasure is the sole aim of life.", and the definition for refurbish is "To brighten or freshen."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for combustion is "act of burning.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for euphoria is "Feeling of great happiness."

The definition for accessible is "Easy to reach or to approach." Used in a sentence: The introduction to the complex novel was, thankfully, written in clear accessible language. The definition for incidental is "minor.", the definition for refurbish is "To brighten or freshen.", and the definition for raspy is "rough, grating."