appall

verb

ap·​pall ə-ˈpȯl 

variants or less commonly appal

appalled; appalling

transitive verb

: to overcome with consternation, shock, or dismay

We were appalled by his behavior.

intransitive verb

obsolete : weaken, fail

Synonyms

• terrify
• floor
• frighten
• scare
• shock
• disgust
• horrify
• offend
• panic

Choose the Right Synonym for appall

dismay, appall, horrify, daunt mean to unnerve or deter by arousing fear, apprehension, or aversion.

dismay implies that one is disconcerted and at a loss as to how to deal with something.

dismayed at the size of the job

appall implies that one is faced with that which perturbs, confounds, or shocks.

I am appalled by your behavior

horrify stresses a reaction of horror or revulsion.

was horrified by such wanton cruelty

daunt suggests a cowing, disheartening, or frightening in a venture requiring courage.

a cliff that would daunt the most intrepid climber

Examples of appall in a Sentence

The thought of war appalls me.

It appalls me to think of the way those children have been treated.

Recent Examples on the Web

Spielberg imagined it as a noise that has the power to appall. —David Denby, Vulture, 3 July 2025

Still, there is plenty here that should appall both Democrats and Republicans. —The Editorial Board, Chicago Tribune, 11 Apr. 2025

Dismay or appall you, sure, but never surprise you. —Patt Morrison, Los Angeles Times, 31 Dec. 2024

That kind of appalls me to think that people need not expect that of themselves. —David Marchese Photograph By Mamadi Doumbouya, New York Times, 15 Feb. 2024

What appalls him now is a lack of accountability in Netanyahu’s government. —David Remnick, The New Yorker, 14 Jan. 2024

Kunzig: Alejandra, the weather this year kept finding fresh ways to appall us. —Susan Goldberg, National Geographic, 9 Dec. 2021

The whiteness of the fantasy village will appall some — including, presumably, those who protested Gelman’s leadership of The Wing, that women-only co-working operation whose own workforce was notoriously segregated by race. —Grace Lavery, Curbed, 20 Apr. 2022

Are there some whose only aim is to appall and disturb? —Mark Shanahan, BostonGlobe.com, 2 Dec. 2022

Word History

Etymology

Middle English apallen, appallen "to grow faint (of strength), fade (of emotions), dim (of honor, fame), (transitive) to make fade, allay, tarnish," probably borrowed from Middle French apalir "to become pale, make pale," going back to Old French, from a-, prefix forming transitive verbs (going back to Latin ad- ad-) + palir "to become pale" — more at pale entry 2

Note: The origin of this verb is not completely clear. In Middle English both ap(p)allen and pallen "to pall entry 1," taken as an aphetic form of ap(p)allen, consistently show spellings with a double l that reflect short a, which is confirmed by the modern outcome [pɔl]; note the rhyme falleth / appalleth in Gower's Confessio Amantis. If Middle French apalir is the source, there would appear to be scant grounds for -ll-, as unprefixed palir yields Middle English palen, modern pale. In Anglo-French apalir is apparently unattested—or at least not entered in the Anglo-Norman Dictionary—though palir is occasionally attested with -ll-. Both ap(p)allen and pallen at a fairly early date show semantic extension well beyond the literal base "to make pale."

First Known Use

14th century, in the meaning defined at intransitive sense

Rhymes for appall

• aldol
• armhole
• atoll
• awol
• backhaul
• banal
• baseball
• befall
• cabal
• catchall
• cecal
• centrale

Kids Definition

appall

verb

ap·​pall ə-ˈpȯl 

: to cause to feel fear, shock, or disgust