形容詞 elusive:

1. difficult to describe
2. skillful at eluding capture- David Kline
   同義詞：evasive
3. be difficult to detect or grasp by the mind
   同義詞：subtle

1. The Abominable Snowman who haunts the imagination of climbers in the Himalayas is hardly more elusive.
   常使喜馬拉雅山的攀登者浮想聯(lián)翩的雪人也不比此更難以捉摸。
2. Men like to pursue an elusive woman, like a cake of wet soap in a bathtub- even men who hate bath.
   男人們喜歡追逐那些象浴缸里的濕肥皂般難以捉摸的女人，即使是討厭洗澡的男人也無不如此。
3. Interpol have searched all the corners of the earth for the elusive hijackers.
   國際刑警組織已在世界各地搜查在逃的飛機(jī)劫持者。

e.lu.sive

adj.（形容詞）
Tending to elude capture, perception, comprehension, or memory:
逃避的：不易被抓獲、覺察、理解或記憶的：
例句：
.an invisible cabal of conspirators, each more elusive than the archterrorist[himself] . (David Kline)
.一個看不見的小陰謀集團(tuán)，每一個都比恐怖主義集團(tuán)［本身］ 更難于被發(fā)現(xiàn). (戴維·克蘭)

Difficult to define or describe:
難于定義或描述的：
例句：
.Failures are more finely etched in our minds than triumphs, and success is an elusive, if not mythic, goal in our demanding society.(Hugh Drummond)
.失敗比勝利更容易刻在我們腦中，成功在我們這個需求的社會是一個難于描述的，如果不是神秘的話，目的在我們的社會需求中.(休·德拉蒙德)

來源：
From Latin ôlôsus [past participle of] ôlôdere [to elude] * see elude
源自 拉丁語 ôlôsus [] ôlôdere的過去分詞 [逃避] *參見 elude

【引伸】
elu.sively
adv.（副詞）
elu.siveness
n.（名詞）