quondam

Looking for an unusual and creative way to say "former"? Quondam (which came to English in the 16th century from Latin quondam, meaning "at one time" or "formerly") certainly fits the bill. Or maybe you'd prefer one of its synonyms: whilom, ci-devant, or preterit. Or you could really go crazy with umquhile, a word that is extremely rare even in its more natural Scots English setting. Quondam itself isn't exactly ubiquitous, but it's used more than any of the other words above. If you're looking for something a bit more pedestrian, you might try yet another synonym: erstwhile. Despite its wonderfully archaic flavor, erstwhile is a highly favored alternative.