Synonyms of at one time in English:

at one time


See definition of at one time

phrase

1‘she was a nurse at one time’

SYNONYMS
formerly, previously, once, in the past, at one point, at some point, once upon a time, time was when, in days gone by, in times gone by, in times past, in the old days, in the good old days, back in the day, long ago
literary in days of yore, in times of yore, of yore
archaic sometime, erst, erstwhile, whilom
ANTONYMS

never

2‘several matches were going on at one time’

SYNONYMS
simultaneously, at once, at the same time, at one and the same time, at the same instant, at the same moment, concurrently, concomitantly
together, all together, alongside each other, in unison, in concert, in chorus, as a group
rare synchronously
ANTONYMS

separately, consecutively