hit and miss
adjective Sometimes good or successful, sometimes not; having mixed or unpredictable results; random, aimless, careless, or haphazard. Often hyphenated. Films at the festival were hit and miss, but they were all unique. The company still relies on hit-and-miss techniques that seem antiquated by today's standards. The tour around the region felt a bit hit and miss, with no clear agenda or plan.
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