- of the poorest quality or the lowest standard最坏的, 最差的, 最糟的：
the speech was the worst he had ever made.
那是他作过的最糟的演讲。
- least pleasant, desirable, or tolerable最令人不快的; 最恶劣的; 最无法忍受的：
they were to stay in the worst conditions imaginable.
他们将呆在人们所能想到的最恶劣的环境中。
- most severe, serious, or dangerous最严酷的; 最严重的; 最危险的, 最有害的：
at least 32 people died in Australia's worst bus accident.
在这起澳大利亚最严重的公共汽车交通事故中, 至少有32人死亡。
- least suitable or advantageous最不合适的; 最不利的：
the worst time to take out a bond is when rates are low but rise suddenly.
利率低但又突然回升的时候是提取债券最不合适的时机。
- most severely or seriously最恶劣地; 最严重地; 最不利地：
manufacturing and mining are the industries worst affected by falling employment.
制造业和采矿业是受就业率下降影响最大的两个行业。
- least well, skilfully, or pleasingly最坏地, 最差地; 最令人不快地：
he was voted the worst dressed celebrity.
他被投票选为穿着最无品位的名流。
- sentence adverb used to introduce the fact or circumstance that the speaker considers most serious or unpleasant最糟的是（用于引导句子）：
her mother had rejected her, and worst of all, her adoptive father turned out to be a cheat and a deceiver.
她母亲抛弃了她, 最糟的是她的养父原来是个十足的骗子。
- the most serious or unpleasant thing that could happen最坏的事情; 最严重的事：
when I saw the ambulance outside her front door, I began to fear the worst.
当我看到停在她前门的救护车时, 我开始担心发生了最坏的事情。
- the most serious, dangerous, or unpleasant part or stage of something最严重的部分（或阶段）; 最危险的部分（或阶段）; 最不愉快的部分（或阶段）：
there are signs that the recession is past its worst.
有迹象表明经济萧条最严重的时期已经过去。
- get the better of; defeat打败, 胜过：
this was not the time for a deep discussion - she was tired and she would be worsted.
这不是深入讨论的时候——她筋疲力尽, 不堪一击。
at its（或someone's）worst
- in the most unpleasant, unimpressive, or unattractive state of which someone or something is capable在最坏的情况下, 在某人最糟的时候：
nothing's working at the moment, so I suppose you've seen us at our worst.
眼下一切都不在运转, 因此我觉得你看到的是我们最糟的时候。
- at the most severe or serious point or level在最严重的时刻, 在最危急的情况下：
harsh lines appeared in his face when his rheumatism was at its worst.
当他关节炎发作最厉害的时候, 他痛得脸上起了很深的皱纹。
at worst（或the worst）
- in the most serious case在最严重的情况下, 在最坏的情况下：
at worst the injury could mean months in hospital.
在最坏的情况下, 这处伤将意味着在医院躺上几个月。
- under the most unfavourable interpretation往最坏处说：
the cabinet's reaction to the crisis was at best ineffective and at worst irresponsible.
内阁对这次危机所作出的反应往好了说是毫无成效, 往坏了说是不负责任。
be one's own worst enemy
- 见ENEMY.
do one's worst
- do as much damage as one can (often used to express defiance in the face of threats)挑战用语有什么手段尽管使出来：
let them do their worst - he would never surrender.
让他们有什么手段尽管使出来吧——他永不投降。
get（或have）the worst of it
- be in the least advantageous or successful position; suffer the most处于最不利的境地; 大吃苦头。
if the worst comes to the worst
- if the most serious or difficult circumstances arise如果事情坏到无可再坏, 如果最坏的事发生, 到一筹莫展的时候。