in·flu·en·tial 
/ˌɪnfluˈɛnʃəl/ adjective
/ˌɪnfluˈɛnʃəl/ adjective [more influential; most influential] : having the power to cause changes : having influence
▪ She became an (enormously/extremely) influential critic/writer. ▪ a highly/very influential book ▪ His theories have become more influential in recent years. ▪ My parents have been the most influential people in my life. — sometimes + in ▪ She has been influential in establishing programs to help the poor.
▪ She became an (enormously/extremely) influential critic/writer. ▪ a highly/very influential book ▪ His theories have become more influential in recent years. ▪ My parents have been the most influential people in my life. — sometimes + in ▪ She has been influential in establishing programs to help the poor.
— in·flu·en·tial·ly /ˌɪnfluˈɛnʃəli/ adverb
/ˌɪnfluˈɛnʃəli/ adverb
