The definition for rancorous is "Marked by deep ill–will." Used in a sentence: The rancorous competition between the two chess clubs actually ended in a brawl. The definition for diffident is "lacking self–confidence.", the definition for genial is "Sympathetic, friendly.", and the definition for fickle is "Lacking constancy, changeable."

The definition for obnoxious is "Highly offensive." Used in a sentence: The manager asked the obnoxious diner to leave the restaurant. The definition for elusive is "hard to grasp.", the definition for untenable is "Not able to be defended.", and the definition for intricate is "Having complex and interrelated parts."

The definition for accentuate is "To emphasize." Used in a sentence: Carla used red ribbons to accentuate the coppery tones in her hair. The definition for appalling is "inspiring dismay or disgust.", the definition for stealth is "The act of moving secretly or unnoticed.", and the definition for demean is "To lower status."

The definition for aerate is "To supply with air." Used in a sentence: Every spring, Soloman used his tiller to aerate the compact soil. The definition for inviolable is "secure from assault of trespass.", the definition for drub is "To defeat decisively.", and the definition for regale is "To amuse."

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 condone is "to treat as acceptable.", the definition for melee is "A tumultuous fight among several people.", and the definition for commemorate is "To mark by a ceremony."