(of screened minerals) passing through a sieve of given mesh.

Origin of undersize

First recorded in 1785–95; under- + size1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for undersize

Contemporary Examples of undersize

  • Though he had good genes, he was undersize, crooked-legged, and more interested in mating than he was in racing.

    The Daily Beast logo
    Can These Two Horses Save Racing?

    Sally Denton

    June 4, 2009

Historical Examples of undersize

  • If he's undersize unhook him gently and throw him back into the river.

    The Highgrader

    William MacLeod Raine

  • Her conscience told her that she enjoyed a joke at Luke's undersize.

    Verner's Pride

    Mrs. Henry Wood