The definition for combative is "Eager to fight." Used in a sentence: The teacher suggested the combative student channel his aggression into boxing. The definition for catastrophic is "relating to extreme misfortune.", the definition for placebo is "An inactive substance used in medical testing.", and the definition for epistolary is "Contained or carried on in letters."

The definition for punctual is "On time." Used in a sentence: Ron was worried when the usually punctual Amanda was late for the show. The definition for foil is "one that enhances or underscores by contrast.", the definition for euphoria is "Feeling of great happiness.", and the definition for induce is "To influence or cause."

The definition for redouble is "To make twice as great." Used in a sentence: As the sun began to set, Brittany redoubled her effort to find the necklace she had dropped in the field. The definition for inviolable is "secure from assault of trespass.", the definition for advantageous is "Giving an advantage.", and the definition for stern is "Harsh, severe."

The definition for frugal is "Thrifty, cheap." Used in a sentence: The frugal shopper only bought items that were on sale. The definition for defiant is "showing bold resistance.", the definition for antidote is "Something that relieves or counteracts.", and the definition for impenitent is "Lacking remorse."

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 scamper is "to run quickly.", the definition for raucous is "Noisy, rowdy.", and the definition for diffident is "Lacking self–confidence."