lightweight (n.)

  1. a professional boxer who weighs between 131 and 135 pounds

  2. someone who is unimportant but cheeky and presumptuous

    [ Syn: whippersnapper , jackanapes ]

  3. an amateur boxer who weighs no more than 132 pounds

  4. a wrestler who weighs 139-154 pounds

    lightweight (adj.)

  1. weighing relatively little compared with another item or object of similar use; a lightweight fabric; lightweight wood'

  2. having no importance or influence; a lightweight intellect'

The dictionary is based on the WordNet Electronic Lexical Database.
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