underage

2
[ uhn-der-ij ]
/ ˈʌn dər ɪdʒ /

noun

shortage; deficiency in amount.

Origin of underage

2
First recorded in 1605–15; under- + -age
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for underages

underage

/ (ˌʌndərˈeɪdʒ) /

adjective

below the required or standard age, esp below the legal age for voting or drinking
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012