The Collaborative International Dictionary of English v.0.48:

Goatish \Goat"ish\, a.
   Characteristic of a goat; goatlike.
   [1913 Webster]

         Give your chaste body up to the embraces
         Of goatish lust.                         --Massinger.
   -- Goat"ish*ly, adv. -- Goat"ish*ness, n.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

65 Moby Thesaurus words for "goatish":
   animal, aphrodisiomaniacal, asinine, bawdy, bovid, bovine, caprid,
   caprine, carnal, clitoromaniacal, concupiscent, cowish, cowlike,
   deerlike, dirty, ejaculatory, equestrian, equine, erotic,
   eroticomaniacal, erotomaniacal, fleshly, goatlike, gynecomaniacal,
   hircine, hoggish, hoofed, horny, horsy, hot, hot-blooded,
   hysteromaniacal, itching, ithyphallic, lascivious, lecherous, lewd,
   libidinous, lickerish, lubricious, lustful, mulish, nymphomaniacal,
   obscene, orgasmic, orgastic, ovine, passionate, piggish, priapic,
   prurient, randy, ruminant, salacious, satyric, sensual,
   sex-starved, sexual, sexy, sheepish, sheeplike, steamy, swinish,
   ungulate, unsatisfied