1. in a way that is not clearly defined, fixed, or determined; vaguely or ambiguously
2. without a fixed limit or end; for an indefinite period

Examples

• The contract left the payment terms indeterminately worded, causing confusion later.
• She stared indeterminately out the window, lost in thought.
• The project was postponed indeterminately due to budget constraints.
• The rules were explained indeterminately, leaving many questions unanswered.
• He wandered indeterminately through the city without a specific destination.
• The deadline was set indeterminately, which frustrated the team members.