faithless的音標是["fe?θl?s]，翻譯為“不忠實的；無信的”。

速記技巧：fa-he-less，fa可以聯想到“父親”，he可以聯想到“他”，less表示“沒有……的”。整體意思是“無信的父親”。

faithless這個詞的詞源可以追溯到拉丁語詞根“fidere”，意思是“信任”或“信仰”。faithless這個詞本身是由“faith”（信仰）和“less”（無）組成的，表示“無信仰的”或“不忠誠的”。

變化形式：faithless是faith的-less（無...的）變化形式，表示缺乏信仰或忠誠。

相關單詞：

1. unfaithful（不忠誠的）：這個詞直接由faithless派生而來，表示缺乏忠誠或信任。

2. disloyal（不忠的）：這個詞表示不忠誠、不忠實，常用于描述人際關系或政治關系。

3. unreliant（不可信任的）：這個詞表示不可靠、不信任他人的人。

4. untrustworthy（不可信的）：這個詞表示不值得信任、不可靠的人或事物。

5. faithfulness（忠誠）：這個詞表示忠誠、信任，常用于描述人際關系或政治關系。

6. loyal（忠誠的）：這個詞表示忠誠、忠實，常用于描述人際關系或政治關系，與faithless形成鮮明對比。

7. trust（信任）：這個詞與faithless直接相關，表示對某人的信任或依賴。

8. faith（信仰）：這個詞與faithless詞源相同，表示對宗教、原則或事物的信仰。

9. faithfully（忠誠地）：這個詞表示忠誠地、真誠地，常用于描述行為或表達方式。

10. reliable（可靠的）：這個詞表示可信賴的、可靠的，常用于描述人或事物是否值得信任。

常用短語：

1. faithless behavior

2. lack of faith

3. faithless partner

4. unfaithfulness

5. lack of trust

6. unreliability

7. betrayal of trust

例句：

1. He was accused of being faithless to his marriage vows.

2. She found herself in a relationship with a faithless partner.

3. She was betrayed by her friend"s unfaithfulness.

4. He always lacked trust in others, and it caused him a lot of trouble.

5. She was unreliable, always making promises she couldn"t keep.

6. Faithlessness can cause deep emotional pain and relationship breakdowns.

7. It"s important to maintain trust and reliability in relationships to avoid such betrayals of trust.

英文小作文：

標題：The Dangers of Faithlessness in Relationships

In relationships, trust and reliability are essential for maintaining healthy and happy relationships. However, when someone lacks faith or is unreliable, it can have a negative impact on the relationship and cause emotional pain and breakdowns.

Lack of trust can lead to suspicion and mistrust, which can create a toxic environment that is not conducive to healthy communication and bonding. Unfaithfulness, on the other hand, can cause deep betrayal and hurt that can take a long time to heal. Additionally, unreliability can lead to disappointment and frustration, as people may have to constantly rely on others to fulfill their commitments or promises, which can create a sense of dependency and dissatisfaction.

On the other hand, when someone is faithful, reliable, and trustworthy, it creates a safe and secure environment that fosters healthy communication and bonding. It also encourages individuals to be honest and open with each other, which can lead to stronger relationships and deeper connections. Therefore, it"s important to maintain trust and reliability in relationships to avoid the negative consequences of faithlessness.