漢語翻譯：
a. 傳統(tǒng)的, 習(xí)慣的, 約定的
【經(jīng)】 慣例的, 常規(guī)的, 傳統(tǒng)的詞型變化：
副詞:conventionally名詞:conventionalism詞意辨析：
usual, customary, habitual, conventional, regular這些形容詞均有“通常的，慣常的”之意。
usual: 普通用詞，概念廣泛。指經(jīng)常發(fā)生或意料中的事，既可指自然發(fā)生的現(xiàn)象，也可指按個人習(xí)慣或慣例而做的事。
customary: 指特定的個人或群體的平常習(xí)慣，或習(xí)俗性的行為。
habitual: 指按個人習(xí)慣反復(fù)發(fā)生的事情。側(cè)重經(jīng)常性、習(xí)慣性。
conventional: 語氣強(qiáng)，指遵守已成習(xí)慣的事情，強(qiáng)調(diào)符合慣例，由人們普遍認(rèn)可。
regular: 著重遵守約定俗成的規(guī)則。英語解釋：
形容詞 conventional:

following accepted customs and proprieties

conforming with accepted standards同義詞：established

(weapons) using energy for propulsion or destruction that is not nuclear energy

unimaginative and conformist

represented in simplified or symbolic form同義詞：formal, schematic

in accord with or being a tradition or practice accepted from the past

rigidly formal or bound by convention同義詞：ceremonious

例句：

Her book is a hilarious send-up of a conventional spy story.她寫的書用的是取笑傳統(tǒng)偵探小說的筆法，令人捧腹。

According to conventional wisdom, voters usually make their choice on the basis of domestic issues.按一般人在這些問題上的看法，選民常常著眼于國內(nèi)問題來選擇候選人。

An aircraft powered by a conventional propeller and supported in flight by a freewheeling, horizontal rotor that provides lift.旋翼機(jī)在飛行中以常規(guī)的螺旋槳來驅(qū)動并靠慣性滑行支持的，提供升力的水平旋轉(zhuǎn)儀

He often speaks a few conventional remarks.他總是喜歡說老生常談的那幾句話。

"How are you?" is a conventional greeting.“你好”是一個習(xí)慣問候語。

詳細(xì)解釋：
con.ven.tion.al
adj.（形容詞）
Based on or in accordance with general agreement, use, or practice; customary:
傳統(tǒng)的：根據(jù)或符合一致意見、用法或慣常做法的；習(xí)慣的：
例句：
conventional symbols; a conventional form of address.
常用的象征；稱呼的慣用形式
Conforming to established practice or accepted standards; traditional:
傳統(tǒng)的：遵循被確定的慣例或者被認(rèn)可的準(zhǔn)則的；傳統(tǒng)的：
例句：
a conventional church wedding.
傳統(tǒng)的教堂式婚禮
Devoted to or bound by conventions to the point of artificiality; ceremonious.
因襲的：過分注意或拘泥于習(xí)俗以致有點(diǎn)做作的；拘泥于俗套的
Unimaginative; conformist:
死板的：缺乏想象力的；墨守成規(guī)的：
例句：
longed to escape from their conventional, bourgeois lives.
渴望脫離他們那種呆板的中產(chǎn)階級生活
Represented, as in a work of art, in simplified or abstract form.
因襲的：（如在藝術(shù)品中）以簡單化或抽象形式表現(xiàn)出來的
Law Based on consent or agreement; contractual.
【法律】 契約的：根據(jù)一致同意或約定的；合同的
Of, relating to, or resembling an assembly.
會議的：會議的、與之有關(guān)的或類似于會議
Using means other than nuclear weapons or energy:
常規(guī)的：使用核武器或核能以外手段的：
例句：
conventional warfare; conventional power plants.
常規(guī)戰(zhàn)爭；非核動力發(fā)電站
【引伸】
conven.tionalism
n.（名詞）
conven.tionalist
n.（名詞）
conven.tionally
adv.（副詞）