pitfall (plural pitfalls)
- (figuratively) A potential problem, hazard, or danger that is easily encountered but not immediately obvious.
- Synonym: trap
- It's usually a simple task, but you should know the pitfalls before you attempt it yourself.
- (literally) A type of trap consisting of a concealed hole in the ground: victims fall into the hole and are unable to escape.
- (computing) An anti-pattern.
potential problem, hazard, or danger
anti-pattern — see antipattern