Synonyms and Antonyms for erstwhile

Synonyms:

• past
• old
• quondam
• onetime
• sometime
• one-time
• former

Antonyms:

• future
• present
• incoming
• succeeding
• next

Synonyms:

• erst
• at one time
• formerly
• once

Antonyms:

• prospective
• emerging
• upcoming
• prox