deadly

dead, deadly

• he is dead.
  他死了。
• i found a dog howling over the dead body.
  我看到有条狗对着死尸嚎叫。
• the baby was born dead.
  婴孩一生下来就死了。
• he was dead drunk in the new year eve party.
  他在除夕晚会上喝得烂醉如泥。
• i'm dead tired!
  我累极了！

• be careful!this is a deadly poison.
  小心！这是致命的毒药。
• he is our deadly enemy.
  他是我们的死敌。
• his face turned deadly pale.
  他的脸色变得非常灰白。
• the show is deadly boring.
  那场表演非常沉闷。

deadly, fatal, mortal, lethal

形容词 deadly:

1. causing or capable of causing death
   同义词：deathly, mortal
2. of an instrument of certain death
   同义词：lethal
3. extremely poisonous or injurious; producing venom
   同义词：venomous, virulent
4. involving loss of divine grace or spiritual death
   同义词：mortal
5. exceedingly harmful
   同义词：baneful, pernicious, pestilent
6. (of a disease) having a rapid course and violent effect

副词 deadly:

1. as if dead
   同义词：lifelessly
2. as if produced by death
3. (used as intensives) extremely
   同义词：madly, insanely, deucedly, devilishly

1. The conference was deadly dull.
   会议开得死气沉沉的。
2. Cancer is a deadly disease.
   癌症是一种致命的疾病。

dead.ly

adj.（形容词）
dead.li.er,dead.li.est
Causing or tending to cause death:
致命的，致死的：导致死亡的或有可能导致死亡的：
例句：
deadly weapons; a deadly spill of radioactive waste products.See Synonyms at fatal
致命的武器；导致死亡的核辐射废物的倾倒参见 fatal

Suggestive of death:
如死一般的：
例句：
a deadly pallor.
死人般的苍白

Aiming or wanting to kill; implacable:
不共戴天的：旨在杀死或怀有这样的目的的；不可能和解的：
例句：
deadly enemies.
不共戴天的仇敌

Destructive in effect:
具有毁灭影响的：
例句：
gave the film a deadly review.
对这部影片给予毁灭性的评论

Tending to take away vitality, effectiveness, or force:
无活力的：打算削弱活力、影响或力量的：
例句：
the deadly habit of procrastination.
耽搁事情是个要命的坏习惯

Absolute; utter:
绝对的；完全的：
例句：
deadly concentration.
绝对专心

Extreme or terrible:
极度的或可怕的：
例句：
worked under deadly strain.
在极度的紧张状态下工作

Extremely accurate; unerring:
十分精确的；准确无误的：
例句：
She is a deadly shot with the bow.
她射箭奇准

Dull, tedious, and boring:
枯燥的、沉闷乏味的：
例句：
a deadly prose style.
冗长乏味的散文风格

adv.（副词）
So as to suggest death.
如死一般地
To an extreme:
极端地：
例句：
deadly serious.
极其严重

【引伸】
dead.liness
n.（名词）