Added 9 October 2026 undersized adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about undersized at Wordnik → Where our words come from → Smaller than normal for its kind. Related Words: smallundersizelittlesubstandardpoorinsufficientinadequatesub-standardundergrownsubnormalundersparredunsized Back to today's word