'死路' literally combines 死 (sǐ, 'dead') and 路 (lù, 'road' or 'path'), forming a compound noun meaning 'a road that leads nowhere'—hence its figurative sense of 'dead end' or 'no way out.' It evokes a physical cul-de-sac but is far more commonly used metaphorically to describe hopeless situations: stalled negotiations, unsolvable problems, or career paths with no advancement.

The term carries a strong connotation of finality and futility. It's neutral in register but often appears in serious contexts—news reports, business analysis, or personal reflection—and rarely in lighthearted or casual speech. Unlike the English 'dead end,' 死路 almost never refers to literal street signage; instead, it’s reserved for abstract impasses where all options seem exhausted and reversal is impossible.