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 extenuating is "partially excusing.", the definition for pretense is "False intention or purpose.", and the definition for equitable is "Fair and equal."

The definition for genial is "Sympathetic, friendly." Used in a sentence: The genial host warmly greeted his many guests. The definition for avian is "relating to birds.", the definition for appalling is "Inspiring dismay or disgust.", and the definition for absolve is "To forgive; to free from guilt."

The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for accommodate is "to give consideration to.", the definition for embellish is "To decorate.", and the definition for insolence is "Boldness or rudeness."

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 benefactor is "one who offers financial help.", the definition for camaraderie is "Spirit of friendship.", and the definition for polarize is "To break up into opposing groups."

The definition for heinous is "Shockingly evil." Used in a sentence: Eduardo's heinous betrayal of Lydia shocked even Latasha, who knew his evil ways. The definition for civility is "politeness.", the definition for gruff is "Rough or stern in manner or speech.", and the definition for buffer is "Protective barrier."