The definition for derivative is "Lacking originality." Used in a sentence: Critics panned the movie as a derivative version of last year's Best Picture. The definition for opportune is "suitable or convenient.", the definition for civility is "Politeness.", and the definition for manifest is "Obvious."

The definition for augment is "To make greater." Used in a sentence: Wanda read the dictionary every night to augment her vocabulary. The definition for incumbent is "necessary as a duty or responsibility.", the definition for fragile is "Delicate.", and the definition for parity is "Equality."

The definition for defiant is "Showing bold resistance." Used in a sentence: The defiant toddler refused to leave the park. The definition for negate is "to make invalid.", the definition for gruff is "Rough or stern in manner or speech.", and the definition for antidote is "Something that relieves or counteracts."

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 inviolable is "secure from assault of trespass.", the definition for prune is "To reduce by removing excess.", and the definition for frugal is "Thrifty, cheap."

The definition for anthology is "A collection of selected literary pieces." Used in a sentence: The writer was thrilled when his story was included in an anthology of American masterpieces. The definition for inflammatory is "tending to excite anger.", the definition for exasperation is "The state of being irritated.", and the definition for ethical is "Conforming to accepted standards."