Sometime

1. (adv.) At a past time indefinitely referred to; once; formerly.

2. (adv.) At a time undefined; once in a while; now and then; sometimes.

3. (adv.) At one time or other hereafter; as, I will do it sometime.

4. (a.) Having been formerly; former; late; whilom.

Thesaurus Entries

ancient, any time, before long, by and by, bygone, early, erstwhile, eventually, finally, fore, former, immemorial, in due time, late, old, olden, once, one day, one fine day, one fine morning, onetime, past, prehistoric, previous, primeval, primitive, prior, quondam, recent, some fine day, some sweet day, someday, somewhen, soon, sooner or later, then, ultimately, whilom, yet