plastic — Often, plastics. any of a group of synthetic or natural organic materials that may be shaped when soft and then hardened, including many types of resins, resinoids, polymers, cellulose derivatives, casein materials, and proteins: used in place of other materials, as glass, wood, and metals, in construction and decoration, for making many articles, as coatings, and, drawn into filaments, for weaving. They are often known by trademark names, as Bakelite, Vinylite, or Lucite.
Three-syllable rhymes
bombastic — If you describe someone as bombastic, you are criticizing them for trying to impress other people by saying things that sound impressive but have little meaning.
fantastic — conceived or appearing as if conceived by an unrestrained imagination; odd and remarkable; bizarre; grotesque: fantastic rock formations; fantastic designs.
gymnastic — of or relating to physical exercises that develop and demonstrate strength, balance, and agility, especially such exercises performed mostly on special equipment.
monastic — of or relating to monasteries: a monastic library.
sarcastic — of, relating to, or characterized by sarcasm: a sarcastic reply.
scholastic — of or relating to schools, scholars, or education: scholastic attainments.
stochastic — of or relating to a process involving a randomly determined sequence of observations each of which is considered as a sample of one element from a probability distribution.
thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
Four-or-more syllable rhymes
ecclesiastic — a member of the clergy or other person in religious orders.
iconoclastic — attacking or ignoring cherished beliefs and long-held traditions, etc., as being based on error, superstition, or lack of creativity: an iconoclastic architect whose buildings are like monumental sculptures.
interscholastic — between schools, or representative of different schools, especially secondary schools: interscholastic athletics.
