ingenious

ingenuous 诚实的，真诚的
ingenious 天才的【u（you）诚实，i（I）天才】

ingenious 灵巧的，精巧的

来自拉丁语ingenium,天生的品质，能力，来自in-,进入，使，内在，-gen,生育，出生，词源同gene,engine.即出生就具有的，后引申词义陪明的，灵巧的，精巧的。

ingenious

ingenious: [15] Ingenious used to be a more elevated term than it is today. To begin with it meant ‘highly intelligent’, but already by the 16th century it was starting to come down in the world somewhat to ‘cleverly inventive’. It comes, partly via French ingénieux, from Latin ingeniōsus, a derivative of ingenium ‘natural talent, skill’ (a word which, like English gene, generate, genital, etc, goes back ultimately to Indo-European *gen- ‘produce’, and was also the source of English engine).

Its formal similarity to the distantly related ingenuous has led in the past to its being used for ‘honest, open, frank’, and indeed its semantic derivative ingenuity ‘quality of being ingenious’ [16] belongs etymologically to ingenuous.
=> gene, general, generate, genital

ingenious (adj.)

early 15c., "intellectual, talented," from Middle French ingénieux "clever, ingenious" (Old French engeignos), from Latin ingeniosus "of good capacity, full of intellect; clever, gifted with genius," from ingenium "innate qualities, ability," literally "that which is inborn," from in- "in" (see in- (2)) + gignere, from PIE *gen- "produce" (see genus). Sense of "skillful, clever at contrivance" first recorded 1540s. In a sense of "crafty, clever, skillful" Middle English had enginous (mid-14c.), from Old French engeignos, also engineful "skillful (in war)" (c. 1300). Related: Ingeniously; ingeniousness.

1. ingenious ways of saving energy

节约能源的巧妙方法

2. The director used ingenious devices to keep the audience in suspense.

导演用巧妙手法引起观众的悬念.

3. Try to think of unusual and ingenious solutions.

尽量想想不同寻常的、巧妙的解决方法.

4. She is an ingenious girl.

她是位很灵巧的姑娘.

5. His solution to the puzzle is ingenious.

他破解这道难题的方法很巧妙。

【intelligent, bright, wise, ingenious, brilliant, clever, smart, shrewd】
这组词都有“聪明的”的意思，其区别是：
intelligent: 正式用词，指在理解新的、抽象东西或处理解决问题时，智力超过一般常人。
bright: 口语常用词，多指年轻人，尤指小孩思路敏捷，理解力强，机灵等。
wise: 侧重不是一般的聪明伶俐，而是有远见，有智慧，能明智地处理问题。
ingenious: 指思路敏捷，并暗示有创造与发明的才能和技巧。
brilliant: 指人的才华出众，思路敏捷，常令人赞叹不已。
clever: 强调头脑灵活，接受新事物快，有智有谋，但不一定暗示全面妥当地考虑问题。
smart: 普通用词，与bright和clever的意思很相近，但更强调机灵。
shrewd: 指精明老练，有头脑，善于判断，把握有利机会。