Hitherto

Hitherto (Adj)(अब तक ):  it used in negative statement to describe a situation that has existed up to this point or up to the present time

synonyms:

previously, formerly, earlier, so far, thus far, before, beforehand, to date, as yet;  until now, until then, up until now, up until then, till now, till then, up to now, up to then uses: It's too much of a stretch that the golden city was hitherto undiscovered, despite being half a mile from a village. . This was the most glorious day which I have hitherto seen.