Definition of "undersize" [undersize]

• Smaller than normal, undersized. (adjective)
• Smaller than appropriate, expected or sufficient. (adjective)
• Small enough to fit through a screen. (adjective)

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• "She was sure the metal had distorted her image into the fun-house creature she saw staring back at her, that oversize girl in the undersize dress—a baby face, yes, but with eyes full of dark understanding."
• "He denied that the commercial boats catch undersize fish."
• "After [finding] that four of the five red drum [the anglers] had were undersize, [an officer] tried to get information ...."