Sticking point

/stˈɪkɪŋ pˈɔɪnt/

Sticking point

a subject or issue over which people disagree and therefore no progress can be made

Examples

1. North Korea’s refusal had long been a sticking point.

2. The main sticking point was the question of taxes.

3. Exactly how the land is to be divided up is the main sticking point of the peace talks.

4. You ever heard that term sticking point?