Pitfall (noun)

A hidden or unexpected difficulty or danger.

Origin:

Mid 16th century: from pit1 + fall.

Examples:

1. The biggest pitfall of this investment strategy is the high level of risk.
2. One of the pitfalls of starting a business is the lack of financial stability.
3. The pitfalls of online dating include the possibility of meeting someone who is not who they claim to be.
4. The pitfall of this approach is that it can be time-consuming and inefficient.
5. The pitfalls of DIY home repairs is that it can be dangerous if you don"t know what you"re doing.