For an unlimited or unspecified period of time; without a fixed end point.
From Latin 'indefinitus,' meaning 'not defined' or 'not limited,' composed of 'in-' (not) and 'definitus' (defined, limited). It entered English in the 16th century, emphasizing the open-ended, unbounded nature of duration.
Unlike 'permanently,' which suggests something will last forever, 'indefinitely' is more honest about human limitations - it admits we don't know how long something will last. It's the temporal equivalent of shrugging your shoulders while still conveying a sense of long duration.
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