unconjugal

unconjugal

(ʌnˈkɒndʒʊɡəl)
adj
unfaithful or not appropriate for marriage
References in classic literature ?
The baroness shrugged her shoulders with an air of ineffable contempt, while her husband, affecting not to observe this unconjugal gesture, turned towards Monte Cristo and said, -- "Upon my word, count, I am quite sorry not to have met you sooner.
My name perhaps among the Circumcis'd In Dan, in Judah, and the bordering Tribes, To all posterity may stand defam'd, With malediction mention'd, and the blot Of Falshood most unconjugal traduc't.