We don't have synonyms for prehire yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rehire, premire and prefire.
(adj) :
(of a collective-bargaining agreement) Whereby an employer (usually in the construction industry) agrees to draw its workforce from a pool of employees dispatched by a labour union.
(adj) :
(of a collective-bargaining agreement) Whereby an employer (usually in the construction industry) agrees to draw its workforce from a pool of employees dispatched by a labour union.