A derivative of the name is the Greek Sinforiana.
Sinforosa is infrequently used as a baby name for girls. It is not ranked within the top 1000 names.
A baby name that sounds like Sinforosa is the English Cyneburga.
† approx English pronunciation for Sinforosa: S as in "see (S.IY)" ; IH as in "it (IH.T)" ; N as in "knee (N.IY)" ; F as in "fee (F.IY)" ; AO as in "ought (AO.T)" ; R as in "race (R.EY.S)" ; OW as in "oak (OW.K)" ; AH as in "mud (M.AH.D)"