名詞 intellectual:

1. a person who uses the mind creatively
   同義詞：intellect

形容詞 intellectual:

1. of or relating to the intellect
2. of or associated with or requiring the use of the mind
   同義詞：rational, noetic
3. appealing to or using the intellect
4. involving intelligence rather than emotions or instinct
   同義詞：cerebral

1. He's a kind of intellectual superman.
   他是智力超常的人。
2. He likes to set himself up as an intellectual.
   他喜歡自命為知識(shí)分子。
3. We admired his intellectual providence to acquire vast stores of dry information.
   我們欽佩他收集大量原始資料的遠(yuǎn)見卓識(shí)。
4. Physical or intellectual vigor; energy.
   生機(jī)，活力身體或智力的活力; 能量
5. The age of ideal physical perfection and intellectual vigor.
   盛年，壯年具有理想體力最佳狀態(tài)和智力的年紀(jì)
6. These views were common among intellectuals.
   這些觀點(diǎn)在知識(shí)分子中很普遍。
7. The argument was too intellectual for me; I couldn't follow a word of it.
   這場(chǎng)爭(zhēng)論對(duì)我來說太深?yuàn)W了，我一點(diǎn)都搞不明白。

in.tel.lec.tu.al

adj.（形容詞）

Of or relating to the intellect.
智力的：智力的或和智力有關(guān)的
Rational rather than emotional.
理性的：理性的而不是感性的
Appealing to or engaging the intellect:
知性的：需用或使用智力的：
例句：
an intellectual book; an intellectual problem.
知性的書；需要?jiǎng)幽X子解決的問題

Having or showing intellect, especially to a high degree.See Synonyms at intelligent
高智商的：有智力的或顯出智力的，特別是到了一個(gè)較高的水平參見 intelligent
Given to exercise of the intellect; inclined toward abstract thinking about aesthetic or philosophical subjects.
活躍思維的：用來鍛煉理解力的；趨于對(duì)美學(xué)和哲學(xué)問題進(jìn)行抽象思維的
n.（名詞）
An intellectual person.
知識(shí)分子

來源：
Middle English
中古英語
from Old French intellectuel
源自 古法語 intellectuel
from Late Latin intellôctu3lis
源自 后期拉丁語 intellôctu3lis
from Latin intellôctus [intellect] * see intellect
源自 拉丁語 intellôctus [智力] *參見 intellect

【引伸】
in.tellec.tual.ity
in.tellec.tually
adv.（副詞）
in.tellec.tualness
n.（名詞）