prohibitive

pro·hib·i·tive

adjective \prō-ˈhi-bə-tiv, prə-\

: so high that people are prevented from using or buying something

: almost certain to perform, win, etc., in the expected way

: stopping people from using or doing something

Full Definition of PROHIBITIVE

1

:  tending to prohibit or restrain

2

:  tending to preclude use or purchase <prohibitive costs>

3

:  almost certain to perform as predicted <a prohibitive favorite>

— pro·hib·i·tive·ly adverb

— pro·hib·i·tive·ness noun

Examples of PROHIBITIVE

1. the prohibitive cost of rent

First Known Use of PROHIBITIVE

15th century