We don't have synonyms for swingback yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are singback, slingback and wingback.
(adj) :
Alternative form of swing-back. [Designating a type of step ladder that hinges into an A shape, with steps on both sides but no platform at the top.]
(n) :
Alternative form of swing-back. [(photography, historical) A device for adjusting the plate-holder of a camera to any desired angle.]
(adj) :
Alternative form of swing-back. [Designating a type of step ladder that hinges into an A shape, with steps on both sides but no platform at the top.]
(n) :
Alternative form of swing-back. [(photography, historical) A device for adjusting the plate-holder of a camera to any desired angle.]