The Collaborative International Dictionary of English v.0.48:

Dovelike \Dove"like`\, a.
   Mild as a dove; gentle; pure and lovable. --Longfellow.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

56 Moby Thesaurus words for "dovelike":
   altricial, angelic, anserine, anserous, aquiline, avian, avicular,
   birdlike, birdy, blameless, broken, chastened, childlike, clear,
   columbine, domesticated, faultless, gentle, goosy, guiltless,
   hawklike, housebroken, humble, in the clear, incorrupt, innocent,
   lamblike, meek, mild, nesting, nidicolous, nidificant, not guilty,
   offenseless, oscine, pacific, passerine, peaceable, prelapsarian,
   pristine, psittacine, quiet, rasorial, reproachless, sans reproche,
   sinless, subdued, tame, tamed, uncorrupted, undefiled, unfallen,
   unlapsed, untouched by evil, with clean hands, without reproach