mainobstacle
nounUK /ˌmeɪn ˈɒbstəkl/
US /ˌmeɪn ˈɑːbstəkl/
The biggest thing that stops you from doing something.
The main obstacle to finishing the race was the steep hill.
RELATED WORDS
OTHER MEANINGS
2. The most important problem in a plan or project.
Cost was the main obstacle to building the new park.
3. The largest thing standing in the way of progress.
Lack of time was the main obstacle to learning the guitar.
4. The top reason something cannot happen.
Bad weather was the main obstacle to our picnic.