1. to an indefinite extent
; for an indefinite time
; - Example: "this could go on indefinitely"
The Collaborative International Dictionary of English v.0.48:
Indefinitely \In*def"i*nite*ly\, adv.
In an indefinite manner or degree; without any settled
limitation; vaguely; not with certainty or exactness; as, to
use a word indefinitely.
If the world be indefinitely extended, that is, so far
as no human intellect can fancy any bound of it. --Ray.
Moby Thesaurus II by Grady Ward, 1.0:
35 Moby Thesaurus words for "indefinitely":
a outrance, absolutely, all out, beyond all bounds, beyond compare,
beyond comparison, beyond measure, broadly, completely, dead,
downright, essentially, extremely, flat out, fundamentally,
generally, immeasurably, in the extreme, incalculably,
indecisively, indefinably, indeterminably, indistinctly,
infinitely, most, obscurely, perfectly, purely, radically, totally,
unconditionally, unequivocally, utterly, vaguely,
with a vengeance