a.[Z][B]

1. 最后的，最终的
   My ultimate goal is to have your consent in marrying me.

   我最终的目标就是要你答应嫁给我。

   After many defeats, the war ended for us in ultimate victory.

   经过多次失败，战争以我们的最终胜利而结束。

2. 基本的，根本的；最初的，最早的
   Hard work is the ultimate source of success.

   努力工作是成功之本。

3. 【口】最大的，极限的
   He gave his life and thereby paid the ultimate price.

   他牺牲了生命，从而付出了最大的代价。

n.

1. 最终的事物，终极，结局；极限；顶点[the S][（+in）]
   This car is the ultimate in luxury.

   这是最豪华的汽车。

2. 基本原则[C]
   The denial of these ultimates results in mass selfishness.

   否定这些基本原则会导致普遍的自私。

adj.

1. being or happening at the end of a process.
2. being the best or most extreme example of its kind:
   the ultimate accolade.
3. basic or fundamental.
4. Physics  denoting the maximum possible strength or resistance beyond which an object breaks.

n.

1. (the ultimate) the best achievable or imaginable of its kind:
   the ultimate in luxury.
2. a final or fundamental fact or principle.