Not recorded; not registered; not made part of any record: as, an unrecorded deed or lease.

Not kept in remembrance by writing or by public monuments.

adjective. Not recorded.

adjective. actually being performed at the time of hearing or viewing

"Although the origin of the phrase went unrecorded, it almost certainly sprang from their familiarity with two other playing-card epithets."

unfilmed  untaped  

accorded  awarded  boarded  hoarded  prerecorded  

unappreciated  unattained  uncollected  unconsidered  undescribed