pro ‧ hib ‧ i ‧ tive AC /prəˈhɪbətɪv, prəˈhɪbɪtɪv $ proʊ-/ BrE AmE adjective
[ Word Family: verb : ↑ prohibit ; noun : ↑ prohibition ; adjective : ↑ prohibitive ]
1 . prohibitive costs are so high that they prevent people from buying or doing something:
The cost of land in Tokyo is prohibitive.
2 . a prohibitive rule prevents people from doing things:
prohibitive regulations
—prohibitively adverb :
Moving house would be prohibitively expensive.