Hitherto
/hˈɪˌðɜrtu/
Listen pronunciation
Definition
(adv) Up to this or that time.
Sentence Examples
The history of all hitherto existing societies is the history of class struggles.
When Mary consented to marry Tom, her hitherto flourishing life went quickly downhill.
CEFR Practice Quiz
The species had been ____ unknown to science until its recent discovery in the jungle.