unbirthday

(redirected from unbirthdays)

unbirthday

(ˌʌnˈbɜːθdeɪ)
n
jocular
a. any day other than one's birthday
b. (as modifier): an unbirthday present.
[C19: coined by Lewis Carroll in Through the Looking-Glass]
References in periodicals archive ?
To enter, tell us how many unbirthdays a person has in a year: (a) 364; (b) 1; or (c) none?