disallow

verb

dis·​al·​low ˌdis-ə-ˈlau̇ 

disallowed; disallowing; disallows

transitive verb

1

: to deny the force, truth, or validity of

2

: to refuse to allow

disallowance

ˌdis-ə-ˈlau̇-ən(t)s 

noun

Synonyms

• deny
• reject
• refute

Examples of disallow in a Sentence

The touchdown was disallowed because of a penalty.

disallowing the philosophical concept of free will

Recent Examples on the Web

The big one is to maintain the 2030–2035 car CO2 targets in the upcoming regulatory review, and to disallow any derogation for hybrids after 2035. —New Atlas, 17 Oct. 2025

Broward County Public Schools ultimately disallowed the appearance. —Max Zahn, ABC News, 14 Oct. 2025

Micky van de Ven’s reckless tackle on Sondre Aukland, straight after Bentancur’s goal had been disallowed, hinted at the underlying frustration. —Jay Harris, New York Times, 1 Oct. 2025

If Vrabel wants to establish a winning culture, that means reinforcing certain habits and attitudes and disallowing others. —Andrew Callahan, Boston Herald, 26 Sep. 2025

Word History

First Known Use

15th century, in the meaning defined at sense 1

Rhymes for disallow

• anyhow
• carabao
• disavow
• allow
• avow
• basedow
• chiao
• endow
• eyebrow
• highbrow
• lanao
• meow

Kids Definition

disallow

verb

dis·​al·​low ˌdis-ə-ˈlau̇ 

: to refuse to admit or allow : reject

disallow a claim

disallowance

-ˈlau̇-ən(t)s 

noun

Legal Definition

disallow

transitive verb

dis·​al·​low ˌdi-sə-ˈlau̇ 

1

: to deny the truth, force, or validity of

disallowed the deduction

disallow a bankruptcy claim

2

: to refuse to allow

disallow payment of benefits

disallowance noun