Forbidder

for·bid  (fr-bd, fôr-)

tr.v. for·bade (-bd, -bd) or for·bad (-bd), for·bid·den (-bdn) or for·bid, for·bid·ding, for·bids

1. To command (someone) not to do something: I forbid you to go.

2. To command against the doing or use of (something); prohibit: forbid smoking on trains.

3. To have the effect of preventing; preclude: Discretion forbids a reply.

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[Middle English forbidden, forbeden, from Old English forbodan; see bheudh- in Indo-European roots.]

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for·biddance n.

for·bidder n.

Synonyms: forbid, ban¹, enjoin, interdict, prohibit, proscribe
These verbs mean to refuse to allow: laws that forbid speeding; banned smoking; was enjoined from broadcasting; interdict trafficking in drugs; rules that prohibit loitering; proscribed the importation of certain fruits.

Antonym: permit