swaybacked

adjective

sway·​backed ˈswā-ˌbakt 

variants or less commonly swayback

ˈswā-ˌbak 

1

: having an abnormally hollow or sagging back

On occasion, the cow shared the pasture with a swaybacked horse.

—Wright Morris

2

: having or marked by abnormal forward curvature of the lumbar and cervical regions of the spine

… she stood upright, slightly swaybacked, affecting the bored look of a woman waiting for a bus.

—Austin Murphy

swaybacked posture

3

: marked by a sagging appearance : having or being a part with a concave center

Behind the house was a collection of sheds and swaybacked barns …

—Alec Wilkinson

Examples of swaybacked in a Sentence

Recent Examples on the Web

The earth moved, and a swaybacked giant jogged into view. —The New York Times, New York Times, 10 Apr. 2017

Word History

First Known Use

1680, in the meaning defined at sense 1

Kids Definition

swaybacked

adjective

sway·​backed ˈswā-ˈbakt 

variants also swayback

-ˈbak 

-ˌbak

: having an unusually sagging back

a swaybacked mare

swayback noun