D defs.my
Entry 3 senses Webster, 1913

Beastly

/(bēst"ly̆)/ · Beast·ly · IPA /ˈbiːstli/
01 a. Pertaining to, or having the form, nature, or habits of, a beast.
  1. 1.
    Pertaining to, or having the form, nature, or habits of, a beast.
    Beastly divinities and droves of gods.” Prior.
  2. 2.
    Characterizing the nature of a beast; contrary to the nature and dignity of man; brutal; filthy.
    “The beastly vice of drinking to excess.” Swift.
  3. 3.
    Abominable; as, beastly weather.[Colloq. Eng.]