instrumental in doing

instrumental in (doing) (something)

Particularly influential in causing something to happen. Anna was instrumental in getting both parties to finally agree to a deal. Tom is one of our very best lawyers. He was instrumental in the success of our merger.
See also: instrumental
Farlex Dictionary of Idioms.

instrumental in doing something

playing an important part in doing something. John was instrumental in getting the contract to build the new building. Our senator was instrumental in defeating the bill.
See also: instrumental
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • instrumental
  • instrumental in (doing) (something)
  • tailor-made for (someone or something)
  • founding father
  • founding father (of something)
  • founding mother (of something)
  • get (one) out of (one's) shell
  • the founding father of something
  • have (a) use for (someone or something)
  • have use for