Synonyms for Sometime:

adj.

dead (adjective)
late.

adv.

at an indefinite time (adverb)
erstwhile, former, late, once, previous, quondam, someday.

n.

acquire, ascent, bankrupt, beggar, climb, come out, comedown, descend, disestablish, someday, in the future, in a time to come. all, before, here, last, late, old, precede, previous, then, when, This, Until, Whenever, Whilom. sometime (noun)
erstwhile, former, once, onetime, past, quondam.

Other synonyms:

then, Whenever, Whilom. This, Until. here, last, when. all, before, past. late, previous. Other relevant words:
acquire, all, ascent, bankrupt, before, beggar, climb, comedown, descend, disestablish, erstwhile, here, last, late, old, once, precede, previous, someday, then, when, This, Until, Whenever, Whilom, in the future.

Usage examples for sometime

  1. He must try it sometime – Eight Keys to Eden by Mark Irvin Clifton
  2. Now what's to prevent my stock becoming valuable sometime when they open it up?" – Shadow Mountain by Dane Coolidge
  3. " Sometime he said, and went back into his smithy. – Flemish Legends by Charles de Coster