flail

1 of 2

noun

ˈflāl 

: a hand threshing implement consisting of a wooden handle at the end of which a stouter and shorter stick is so hung as to swing freely

flail

2 of 2

verb

flailed; flailing; flails

transitive verb

1

a

: to strike with or as if with a flail

The bird's wings flailed the water.

b

: to move, swing, or beat as if wielding a flail

flailing a club to drive away the insects

2

: to thresh (grain) with a flail

intransitive verb

: to move, swing, or beat like a flail

arms flailing in the water

Synonyms

Verb

• beat
• flap
• flop
• flutter
• whip

Examples of flail in a Sentence

Verb

They were flailing their arms to drive away the insects.

The wounded animal lay on the ground, flailing helplessly.

He was wildly flailing about on the dance floor.

The bird's wings flailed the water.

Recent Examples on the Web

Verb

At times this season, Newcastle United have fretted and flailed and fumed, usually at themselves and often within the space of a single 90 minutes, but as questions ferment around the club’s direction of travel, here at least is one source of constancy. —George Caulkin, The Athletic, 19 Dec. 2024

Meanwhile, the Chargers (8-6) are flailing for the first time this season. —Thuc Nhi Nguyen, Los Angeles Times, 19 Dec. 2024

Spectators in the gallery cried and gasped, as Neely’s legs flailed about and then slowed down and stopped moving altogether before Penny released his hold on Neely’s neck and got up, fifty-one seconds later. —Adam Iscoe, The New Yorker, 9 Dec. 2024

Lutz converted, and the defense, which spent the evening chasing and flailing, delivered. —Troy Renck, The Denver Post, 2 Dec. 2024

Word History

Etymology

Noun and Verb

Middle English fleil, flail, partly from Old English *flegel (whence Old English fligel), from Late Latin flagellum flail, from Latin, whip & partly from Anglo-French flael, from Late Latin flagellum — more at flagellate

First Known Use

Noun

before the 12th century, in the meaning defined above

Verb

15th century, in the meaning defined at transitive sense 1a

Kids Definition

flail

1 of 2 noun

ˈflā(ə)l 

: a tool for threshing grain by hand

flail

2 of 2 verb

1

: to strike with or as if with a flail

2

: to move or wave about as if swinging a flail

flailed their arms

Medical Definition

flail

adjective

ˈflā(ə)l 

: exhibiting abnormal mobility and loss of response to normal controls

—used of body parts damaged by paralysis, injury, or surgery

flail joint