Flaky

"Flaky" describes someone or something that is unreliable or inconsistent, often failing to follow through on commitments or plans. In personal contexts, a flaky person might frequently cancel or forget appointments, giving the impression of unpredictability. In technical settings, such as software testing, "flaky" refers to tests that sometimes pass and sometimes fail without any change in the code or environment, making it hard to determine if issues are real or random. Overall, being flaky means lacking steady dependability, which can cause frustration and uncertainty in various situations.