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 rehash is "to discuss again.", the definition for euphoria is "Feeling of great happiness.", and the definition for adversary is "One who opposes or resists."

The definition for heed is "To pay attention to." Used in a sentence: "Heed my advice," the fortuneteller warned Sebastian when he tried to ignore her prophecy. The definition for unscrupulous is "lacking principles.", the definition for inflammatory is "Tending to excite anger.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for egotist is "Self–important person." Used in a sentence: Darren dreaded carpooling with the egotist Shelly, who talked about herself nonstop. The definition for incidental is "minor.", the definition for frugal is "Thrifty, cheap.", and the definition for supple is "Flexible."

The definition for compulsion is "An irresistible impulse." Used in a sentence: Tamar, a shoe fanatic, could not resist the compulsion to buy the shiny red boots. The definition for rancorous is "marked by deep ill–will.", the definition for fickle is "Lacking constancy, changeable.", and the definition for plaudits is "Enthusiastic approval."

The definition for exasperation is "The state of being irritated." Used in a sentence: The longer Jorge waited in line at the ticket counter, the more his exasperation grew. The definition for opportune is "suitable or convenient.", the definition for inviolable is "Secure from assault of trespass.", and the definition for stern is "Harsh, severe."