rhizoverbBeta
DictionarydisallowRefuse permission or acceptance
verb

disallow

dis-uh-LOW/ˌdɪsəˈlaʊ/

To refuse to permit something or accept it as valid.

The attendant disallows bringing the bicycle indoors, holding the entrance gate closed.

An entrance attendant refuses to let a visitor bring his bicycle indoors, holding the entrance gate closed and extending a firm stop palm toward the bicycle.
Etymology
disOld Frenchnot, opposite of
+allowOld Frenchpraise, approve

The base meant “praise” or “approve,” so disallow first expressed refusal to praise. Refusing approval then became rejecting something or refusing permission.

In context

CNCF [Cloud Native Computing Foundation]13:15
we want to disallow any connectivity from the front end to that reverse shell even though of course the frontend container would need connectivity to the backend container just for normal operation
Secure Infrastructure with Combined Runtime and Network Security - Thomas Graf, Isovalent

More examples

  • The contest rules disallow entries submitted after the deadline.
  • The auditor disallowed the deduction because we lacked receipts.
  • The judge disallows questions unrelated to the case.

Forms

disallow · disallows · disallowed · disallowing

disallowance noun — The rejection of a claim or request.

Similar words

forbid
Emphasizes ordering that an action must not take place.
reject
Emphasizes refusing to accept something offered or submitted.