UNDERSIZED

undersize, undersized

(adjective) smaller than normal for its kind

Source: WordNet® 3.1

Etymology

Adjective

undersized (comparative more undersized, superlative most undersized)

below the usual or expected size

Source: Wiktionary

Un"der*sized`, a.

Definition: Of a size less than is common.

Source: Webster’s Unabridged Dictionary 1913 Edition