stumbling block
[noun]
Synonyms: obstacle, bar, Chinese wall, hamper, hurdle, impediment, mountain, obstuction, rub, snag

[TahlilGaran] English Synonym Dictionary ▲

ˈstumbling ˌblock noun [countable]
a problem or difficulty that stops you from achieving something
stumbling block to
The main stumbling block to starting new research is that we lack qualified people.

[TahlilGaran] Dictionary of Contemporary English ▲

stumbling block
noun
ADJ. big, main, major, real
VERB + STUMBLING BLOCK remove
PREP. ~ to The question of disarmament proved a major stumbling block to agreement.

[TahlilGaran] Collocations Dictionary ▲

stumbling block
a problem which prevents someone from achieving something.
Lack of willingness to compromise is the main stumbling block to reaching a settlement.
(often + to)
Money, obviously, is a major stumbling block in any project of this size.

[TahlilGaran] English Idioms Dictionary ▲

stumbling block
something that prevents or obstructs progress
The issue of salary was a stumbling block in the negotiations between the company and the union.

[TahlilGaran] English Idioms Dictionary ▲