foolish

This term carries a light, often pitying or critical tone. It describes a failure of judgment that is obvious in hindsight, suggesting a lack of common sense rather than a lack of intelligence. While a person might be intelligent but still act foolishly, the word emphasizes the absurdity of the specific action. Compared to "stupid," which can feel harsh or permanent, "foolish" often describes a temporary lapse or a specific mistake. It is frequently used in moral or cautionary contexts, such as when someone ignores a clear risk or behaves impulsively without thinking of the consequences.