preclude

To make impossible, as by action taken in advance; prevent. synonym: prevent.

To exclude or prevent (someone) from a given condition or activity.

To close; stop up; shut; prevent access to.

To shut out; hinder by excluding; prevent; impede.

To prevent by anticipative action; render in-effectual or unsuccessful; hinder the action of.

Synonyms To prevent, bar, debar, prohibit.

To put a barrier before; hence, to shut out; to hinder; to stop; to impede.

To shut out by anticipative action; to prevent or hinder by necessary consequence or implication; to deter action of, access to, employment of, etc.; to render ineffectual; to obviate by anticipation.

Remove the possibility of; rule out; prevent or exclude; to make impossible.

make impossible, especially beforehand