Encountering a roadblock can be frustrating, but luckily there are several alternative words to use to express this. Some common synonyms for "road block" include obstacle, barrier, hindrance, impasse, stumbling block, and blockade. These words are often used interchangeably to express a situation where progress has been halted or made difficult. Other phrases that can be used to express the same meaning include "dead end," "standstill," "impediment," and "snag." Whether you're facing a literal physical obstruction or a more figurative challenge, these synonyms are useful tools for describing the situation at hand and finding alternative solutions to reach your destination.