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 periodic is "occurring at regular intervals.", the definition for flagrant is "Noticeably offensive.", and the definition for servile is "Fearfully submissive."

The definition for catastrophic is "Relating to extreme misfortune." Used in a sentence: The effects of the massive hurricane were catastrophic. The definition for implausible is "unbelievable.", the definition for futile is "Without purpose, completely ineffective.", and the definition for solace is "Source of consolation."

The definition for benefactor is "One who offers financial help." Used in a sentence: Michael's aunt and benefactor paid his college tuition. The definition for combative is "eager to fight.", the definition for facade is "false or superficial appearance.", and the definition for ecstatic is "Overwhelmingly emotional."

The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for mediate is "to come between parties in order to reconcile.", the definition for accommodate is "To give consideration to.", and the definition for stern is "Harsh, severe."

The definition for brandish is "To shake or wave menacingly." Used in a sentence: The baseball player was fined for brandishing his bat at the opposing pitcher. The definition for precept is "a general rule of action.", the definition for meticulous is "Extrememly careful regarding details.", and the definition for rehash is "To discuss again."