4th Grade Vocabulary Words - List 23

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Word Definition Practice Sentence Synonyms Antonyms Part of Speech Description
reckless Irresponsible actions done without concern for consequences. Her reckless driving almost caused a crash. carefree, thoughtless, brash cautious, discreet, mindful Adjective
specialized Requiring specific knowledge or designed for a particular purpose. Steve has a pair of specialized scissors for cutting fabric. particular, functional Adjective
audition An interview or a test of ability. There were twenty people at the audition trying out for the same part. demo, tryout Noun
pentagon A polygon with five sides. A pentagon has five sides. Noun
satire The use of humor and exaggeration to make fun of people. She wrote a satire about various royal families of history. parody, skit, spoof Noun
lagoon A shallow body of water. The receding lake left a lagoon full of fish. pond, pool, bayou Noun
apex The highest point of something. The actress was at the apex of her career. top, high point, pinnacle bottom, base Noun
mismatched Varying, clashing or unalike. Amy always wears mismatched socks. different, contradictory, disparate similar, alike, same Adjective
boundary A line that marks the limits of something. The curtain is a boundary that divides my side of the room and hers. outer limit, edge, border center, interior, middle Noun
basis A foundation for a process or idea. The scientist has used well-regarded research as the basis for her latest discovery. premise, groundwork, core Noun

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