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Excessive inward or downward curvature of the spine, especially in a horse.

sway′backed′ adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.swaybacked - having abnormal sagging of the spine (especially in horses)
unfit - not in good physical or mental condition; out of condition; "fat and very unfit"; "certified as unfit for army service"; "drunk and unfit for service"
References in classic literature ?
The parlour had once been two rooms, and the floor was swaybacked where the partition had been cut away.
The fields here spread out to ridges black with deep timber on either side, and what houses there were seemed as errant smudges of civilization on a landscape solitary and kept within a ramshackle accord they had made with the wilderness, as if the swaybacked trailers yarded with dogs and scrap metal and ruined tractors would maintain forever a state of disrepair.
To the back were several rusty cars on blocks, a swaybacked barn, and an outbuilding.
if a skinny, long-legged swaybacked Lab whose head is too big is your idea of fine looking.
Tucking requires constant glute and quadricep contractions, creating bulky muscles," says Vogel, while swaybacked dancers are often hypermobile, with overactive spinal extensors, underactive abdominals, and shortened psoas.
Eagle's mailbox, swaybacked and half ajar, gives an indication of the passage of time.
I got tuned into holistic healing very young because I was swaybacked and suffered from back pain.
In "Black Music," Faulkner describes Rincon "as not large; less large even than one swaybacked tanker looming above the steel docks of the Universal Oil Company" (799), and in "Carcassonne" the centerpiece of Rincon's economy is the "Standard Oil Company.