dipped vs swayback

dipped and swayback both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dipped	No	Yes	No	No
swayback	No	Yes	No	No

As adjectives, dipped and swayback are synonyms defined as:

dipped and swayback: having abnormal sagging of the spine (especially in horses)

Other synonyms of dipped include lordotic, swaybacked.

dipped (adjective)	swayback (adjective)
having abnormal sagging of the spine (especially in horses)	having abnormal sagging of the spine (especially in horses)