english
1
general::
noun ADJ. big, main, major, real VERB + STUMBLING BLOCK remove PREP. ~ to The question of disarmament proved a major stumbling block to agreement.
Oxford Collocations Dictionary
2
general::
A hindrance or obstacle, as in His lack of a degree is a real stumbling block to his advancement. This term originally meant "a tree stump over which one trips." Its figurative use dates from the early 1500s.
American Heritage Idioms
3
general::
Phrase(s): a stumbling block
Fig. something that prevents or obstructs progress. • We’d like to buy that house, but the high price is a stumbling block. • Jim’s age is a stumbling block to getting another job. He’s over sixty.
McGrawhill's American Idioms And Phrasal Verbs