The Collaborative International Dictionary of English v.0.48:

Recidivous \Re*cid"i*vous\ (r[-e]*s[i^]d"[i^]*v[u^]s), a. [L.
   recidivus, fr. recidere to fall back.]
   Tending or liable to backslide or relapse to a former
   condition or habit.
   [1913 Webster]