Best Answer:
faults, flaws, weaknesses and drawbacks.
如光以「缺點」涵義來比較，
weaknesses 較常用來指人
faults 指人、事
flaws 指人、事、物
drawbacks 大多用來指事
原為單數，但使用上幾乎都用複數。
faults 過失、責任/缺點/錯誤
A character weakness, especially a minor one. 個性上的弱點，特別是小毛病。
Something that impairs or detracts from physical perfection; a defect. See Synonyms at blemish. 損傷完美，意即缺陷
A mistake; an error. 過錯、錯誤
A minor offense or misdeed. 小犯錯
Responsibility for a mistake or an offense; culpability. See Synonyms at blame.責任、指責
It's all your faults. 這都是你的錯(過失、責任)。
I have my faults, you have your faults, she has her faults. Everybody has his faults.
我有我的缺點，你有你的點，她有她的缺點，每個人都有缺點的。
I found some faults in the book. 我再書裡找到一些錯誤
flaws 缺點、缺陷、瑕疵(特別也指物品與個性)與 in 運用。
An imperfection, often concealed, that impairs soundness: a flaw in the crystal that caused it to shatter. See Synonyms at blemish.
一個不完美(瑕疵)，通常隱蔽著，卻傷害完美性。如：水晶球的瑕疵往往造成她的碎裂...
A defect or shortcoming in something intangible: They share the character flaw of arrogance.
摸不著、看不見(難以理解)的一個缺陷或缺點，如：她們都有傲慢的個性缺點。
A defect in a legal document that can render it invalid.
可造成合法文件失效的缺陷/瑕疵。
There are some flaws in the whole project. 這整個計畫有些瑕疵。
There are flaws in this vase. 這花瓶有些瑕疵。
They pointed out flaws in my character. 她們指出我個性的缺點。
weaknesses 特別指人的弱點/罩門/毛病 注意：多用複數型
The condition or quality of being weak.
A personal defect or failing.
A special fondness or inclination: has a weakness for fast cars.
特別喜歡或喜好，如： 他對快車有(超乎尋常)的喜好。
Something of which one is excessively fond or desirous: Ice cream is his weakness.
超乎尋常的喜歡或渴望(看到這些東西就幾乎不能忍受、自拔)，如：冰淇淋是她的罩門...
Her weaknesses is always talking too much. 她的毛病就是老事太多話。
We all have our little weaknesses. 每個人都有一些小毛病。
French fries is her weakness. 薯條是她的罩門。
drawbacks 缺點/障礙/短處/不利條件
A disadvantage or inconvenience. 不利或不便
the quality of being a hindrance; "he pointed out all the drawbacks to my plan"
對質感(非物品)的障礙，即缺點，如："他指出我計劃所有的缺點。"
Did you see any drawback of this plan, compare to others?與其他相較，你有無發現這個計畫不利的地方。
Source(s):
English Dict. and others
