The definition for iridescent is "Having a lustrous or attractivve quality." Used in a sentence: The movie star's iridescent presence charmed even the hardened reporter. The definition for implausible is "unbelievable.", the definition for pretentious is "Making unjustified claims.", and the definition for negate is "To make invalid."

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 pretentious is "making unjustified claims.", the definition for archetypal is "Characteristic of the original model or perfect example.", and the definition for repentant is "Feeling regret."

The definition for appalling is "Inspiring dismay or disgust." Used in a sentence: Hector found his roommate's habit of leaving his dirty socks on the floor appalling. The definition for perception is "capacity for seeing or understanding.", the definition for refurbish is "To brighten or freshen.", and the definition for rail is "To scold in harsh language."

The definition for accessible is "Easy to reach or to approach." Used in a sentence: The introduction to the complex novel was, thankfully, written in clear accessible language. The definition for proximity is "closeness.", the definition for refurbish is "To brighten or freshen.", and the definition for opportune is "Suitable or convenient."

The definition for exception is "A case to which the rule does not apply." Used in a sentence: The teacher made an exception and let Gina eat her snack in class. The definition for adversary is "one who opposes or resists.", the definition for incisive is "Impressively direct and decisive.", and the definition for futile is "Without purpose, completely ineffective."