pro·hib·i·tive 
/proʊˈhɪbətɪv/ adjective
/proʊˈhɪbətɪv/ adjective 1 [more prohibitive; most prohibitive] : so high that people are prevented from using or buying something
▪ the prohibitive cost of rent ▪ The price was prohibitive. [=too high] 2 US : almost certain to perform, win, etc., in the expected way
▪ She is the prohibitive favorite to win the nomination. [=she is almost certain to win the nomination] 3 formal : stopping people from using or doing something
▪ a prohibitive ruling ▪ prohibitive legislation
▪ the prohibitive cost of rent ▪ The price was prohibitive. [=too high]
▪ She is the prohibitive favorite to win the nomination. [=she is almost certain to win the nomination]
▪ a prohibitive ruling ▪ prohibitive legislation
— pro·hib·i·tive·ly adverb
▪ The price was prohibitively high.
▪ The price was prohibitively high.
