The definition for oblivious is "Lacking awareness." Used in a sentence: Love–struck Charlie was oblivious to everyone but the object of his affection. The definition for incidental is "minor.", the definition for benevolent is "Kind, helpful.", and the definition for hedonism is "Belief that pleasure is the sole aim of life."

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 beneficial is "helpful.", the definition for frugal is "Thrifty, cheap.", and the definition for mediate is "To come between parties in order to reconcile."

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 prominence is "importance.", the definition for fraud is "Trick.", and the definition for authoritarian is "Favoring absolute obedience to authority."

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 penurious is "extrememly stingy.", the definition for awe is "Emotion combining dread and wonder.", and the definition for grandiose is "With an affectation of grandeur."

The definition for antidote is "Something that relieves or counteracts." Used in a sentence: Veronique found that listening to French music was an antidote for her homesickness. The definition for repentant is "feeling regret.", the definition for fidelity is "State of being faithful.", and the definition for sociable is "Inclined to seek companionship."