beastly

形容词 beastly:

1. very unpleasant
   同义词：hellish, god-awful
2. resembling a beast; showing lack of human sensibility
   同义词：bestial, brute, brutish

副词 beastly:

1. in a beastly manner

1. It's beastly cold outside!
   外边冷极了！
2. What beastly weather!
   多么恶劣的天气！

beast.ly

adj.（形容词）
beast.li.er,beast.li.est
Of or resembling a beast; bestial.See Synonyms at brute
兽的，似兽的；下流的参见 brute
Very disagreeable; unpleasant.
令人厌恶的；不愉快的
adv.Chiefly British （副词）【多用于英国】
To an extreme degree; very.
极：达到一个极端的程度；非常

【引伸】
beast.liness
n.（名词）