obstacle noun தடங்கல் , தடை , இடையூறு.

that makes it difficult for you to do something or go somewhere:
  • Not speaking a foreign language was a major obstacle to her career.

© englishfortamils.com/ englishtamilenglish.com 2011 . Team work : Tamil Students Association - University of Illinois - Chicago / Special Thanks To: OXFORD DICTIONARY, Cambridge Advanced Learner's Dictionary and Tamil Dictionaries