noun
impediment
im-PED-uh-munt/ɪmˈpedɪmənt/
Something that prevents or makes an action or process more difficult.
The fallen tree is an impediment blocking the cyclist's route.

Etymology
The “in” and “foot” pieces evoke shackled feet through the underlying verb. An impediment is thus a hindrance to progress, extending the image of restricted movement beyond physical walking.
In context
the time is a real impediment you know staying up till 11:00 or after 11:00
More examples
- The team identifies several impediments to finishing the project.
- She works with a therapist to manage her speech impediment.
- There is no legal impediment to selling the property.
Forms
impediment · impediments
impede verb — To hinder or slow movement or progress.