The Collaborative International Dictionary of English v.0.48:

Paradisial \Par`a*dis"i*al\ (p[a^]r`[.a]*d[imac]s"[i^]*al),
Paradisian \Par`a*dis"i*an\ (p[a^]r`[.a]*d[imac]s"[i^]*an), a.
   Paradisiacal. [R.]
   [1913 Webster]