unretiring

un·re·tire

U0109350 (ŭn′rĭ-tīr′)intr.v. un·re·tired, un·re·tir·ing, un·re·tires To return to work after having taken retirement.
un′re·tir′ee′ n.

unretiring

(ˌʌnrɪˈtaɪərɪŋ) adjnot shy or retiring