youngest /ˈjʌŋ.ɡɪst/adjective 2noun 1forms 1 adjective2 •Most recently begun or formed.I may be the youngest in my family but I still resent being referred to as the baby. •Receiving dealt cards last, i.e. immediately before the next deal to the eldest. noun1 •The youngest child in a family, or individual in a group. formsyoungests