obstacle

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. something immaterial that stands in the way and must be circumvented or surmounted (Freq. 5)
- lack of imagination is an obstacle to one's advancement
- the poverty of a district is an obstacle to good education
- the filibuster was a major obstruction to the success of their plan
• Syn:
obstruction
• Hypernyms:
hindrance, hinderance, deterrent, impediment, balk,
baulk, check, handicap
• Hyponyms:
barrier, roadblock, hang-up, hitch, rub,
snag, hurdle, stymie, stymy
2. an obstruction that stands in the way (and must be removed or surmounted or circumvented) (Freq. 4)
• Hypernyms:
obstruction, obstructor, obstructer, impediment, impedimenta
• Hyponyms:
hazard, stumbling block, water jump