<p><strong>不屑于</strong> is a set phrase.</p>
<p>Check out《现代汉语规范词典》's distinctions:</p>
<blockquote>
<p>不屑</p>
<p>1 动 不值得</p>
<p>不屑一切 | 不屑与之争辩</p>
<p>2 形 形容轻视的样子</p>
<p>一副不屑的神情。</p>
</blockquote>
<p>and</p>
<blockquote>
<p>不屑于</p>
<p>动 认为不值得做或不值得理睬</p>
<p>他很自负, 好像不屑于做这种具体工作。</p>
</blockquote>
<p>《规范》defines the two slightly differently while treating 不屑于 as a separate independent word and not a construct.</p>

CC BY-SA 3.0
2018-03-15T12:32:59.503Z
I'm sorry but what is this 《规范》 you're talking about? Any source or reference?
zypA13510
CC BY-SA 3.0
2018-03-15T12:44:01.033Z
Is 规范 a printed dictionary only? Seems that I could not get to any online dictionary with a quick Baidu search...
Blaszard
CC BY-SA 3.0
2018-03-15T13:13:19.207Z
《现代汉语规范词典》https://wapbaike.baidu.com/item/现代汉语规范词典/1567516?fr=aladdin
Mou某
CC BY-SA 3.0
2018-03-16T09:05:05.943Z
I still think these two mean practically the same thing, even if the actual definition uses the different sentences.
Blaszard
CC BY-SA 3.0
2018-03-16T10:01:31.893Z
@Blaszard The definitions do provide some insight. The added 于 gives the idea of thought or beliefe (认为) and the extra ‘to do’ (做) or ‘pay attention to’ (理睬). As opposed to the 于-less definition of only ‘not worth it’ (不值得). The inclusion of 不屑于 in the dictionary itself is also a point worth mentioning. GF isn’t going to include constructs (word + word) as entries in it’s dictionary. The thought pattern, logically, is that 不屑于 is a construct of 不屑 + 于 but the fact that they have put it in there as a single word shows that it is in fact its own word or word phrase.
Mou某
CC BY-SA 3.0
2018-03-15T10:33:27.973Z
2018-03-15T14:33:45.303Z
2020-06-17T09:50:11.587Z
Mou某
<blockquote>
  <p>不屑于说英文了 </p>
</blockquote>

<p>于, refer to the definition in the dictionary: </p>

<blockquote>
  <p>　2. 后缀（ａ．在形容词后，如“疏～防范”；ｂ．在动词后，如“属～未来）。</p>
</blockquote>

<p>The sentence can be paraphrasing as:</p>

<blockquote>
  <p>对于说英文很不屑</p>
</blockquote>

<p>In this case, better not omit 于, as 于 here specifies the thing you disdain 不屑. </p>

CC BY-SA 3.0
2018-03-17T05:59:15.403Z
2018-03-17T05:59:15.403Z
dan
<p>“于” It is combined with nouns, pronouns, or nominal phrases to form a referential structure, serving as an adverbial or complement in a sentence.
1.The introduction of premises relating to the act.
（1）Indicates where action occurs, occurs, or occurs.
（2）The place or source of the introduction of an action.The object structure of “于” is used as a complement after a verb or predicate.It can be translated as "从（cong）", "自（zi）" to "由（you）" and so on.
（3）The place where action is introduced.The object structure of “于” is used as a complement after a verb or predicate.It can be translated as "至（zhi）", "到（dao）" and so on.
2.Introduce time associated with action.
（1）Indicates when an action occurs or occurs."于" can be used as an adverbial before the verb, or as a complement after the verb.Can be translated as in.Indicates when an action occurs or occurs."于" can be used as an adverbial before the verb, or as a complement after the verb.Can be translated into “在”.
（2）Indicates when an action has been extended or terminated.The object structure of “于” is often used as a complement after the verb predicate.</p>

CC BY-SA 4.0
2018-09-14T10:39:37.743Z
2018-09-14T10:39:37.743Z
taoger
<p><a href="https://baike.baidu.com/item/%E5%B0%8F%E8%B5%84/93009?fr=aladdin" rel="nofollow noreferrer">In the following sentence</a>:</p>

<blockquote>
  <p>也有一些“小资女人”的领军人物开始<strong>不屑于说英文了</strong>，偶尔来句日文或法文才能彰显自己的不同。</p>
</blockquote>

<p>This sentence uses 不屑于, not 不屑, but the meaning would be something like:</p>

<blockquote>
  <p>Also, some leaders of “小资女人” started to look down on speaking English, and they sometimes think that to speak Japanese or French makes it clear that they are different from others. </p>
</blockquote>

<p><sup>The translation might be a bit awkward so feel free to edit it.</sup></p>

<p>I feel that the 于 here takes an object (说英文) after that. But in other usages, 不屑 just takes an object directly, without any preposition.</p>

<p>Or if you relate it to English, it looks like 不屑 here works as an intransitive verb, and 于 is a preposition. But in other uses I have seen, it works as if a transitive verb.</p>

<p>However, why does 不屑 need to take 于 here, even though in other cases it does not need?</p>

<p>note:<a href="https://baike.baidu.com/item/%E4%B8%8D%E5%B1%91/3178" rel="nofollow noreferrer">https://baike.baidu.com/item/%E4%B8%8D%E5%B1%91/3178</a></p>

CC BY-SA 3.0
2018-03-15T16:20:08.150Z
When 不屑 is used as a verb, 于 is optional. When 不屑 is used as adjective, don't take 于.
jf328
CC BY-SA 4.0
2018-05-17T07:24:10.073Z
As native speaker my intuition (without any supporting reference) is 不屑 started as an adjective, therefore 不屑于 = "being 不屑 at sth.", 于 was essential for turning it into verb phrase. Later when the verbial usage is established, 于 is omitted for prosody. My gut feeling is if 不屑 was a one-character word, 于 wouldn't have been omitted.
NS.X.
CC BY-SA 4.0
2018-08-01T08:46:48.560Z
BTW, 小资女人 is loosely "bourgeoisie women".
Winfred Huang
<grammar><word>
Why is 于 needed after 不屑 (but sometimes not)?
# Why is 于 needed after 不屑 (but sometimes not)?

(Asked by: username_0 on 2018-03-15)

[In the following sentence](https://baike.baidu.com/item/%E5%B0%8F%E8%B5%84/93009?fr=aladdin):

> 也有一些“小资女人”的领军人物开始**不屑于说英文了**，偶尔来句日文或法文才能彰显自己的不同。

This sentence uses 不屑于, not 不屑, but the meaning would be something like:

> Also, some leaders of “小资女人” started to look down on speaking English, and they sometimes think that to speak Japanese or French makes it clear that they are different from others.

The translation might be a bit awkward so feel free to edit it.

I feel that the 于 here takes an object (说英文) after that. But in other usages, 不屑 just takes an object directly, without any preposition.

Or if you relate it to English, it looks like 不屑 here works as an intransitive verb, and 于 is a preposition. But in other uses I have seen, it works as if a transitive verb.

However, why does 不屑 need to take 于 here, even though in other cases it does not need?

note:<https://baike.baidu.com/item/%E4%B8%8D%E5%B1%91/3178>

**Tags:** grammar, word

> **Comments:**
> **username_1**: When 不屑 is used as a verb, 于 is optional. When 不屑 is used as adjective, don't take 于.  
> **username_2**: As native speaker my intuition (without any supporting reference) is 不屑 started as an adjective, therefore 不屑于 = "being 不屑 at sth.", 于 was essential for turning it into verb phrase. Later when the verbial usage is established, 于 is omitted for prosody. My gut feeling is if 不屑 was a one-character word, 于 wouldn't have been omitted.  
> **username_3**: BTW, 小资女人 is loosely "bourgeoisie women".  

---

## 3 answers

### Answer by username_4 on 2018-03-15. Score: 1

**不屑于** is a set phrase.

Check out《现代汉语规范词典》's distinctions:

> 不屑
>
> 1 动 不值得
>
> 不屑一切 | 不屑与之争辩
>
> 2 形 形容轻视的样子
>
> 一副不屑的神情。

and

> 不屑于
>
> 动 认为不值得做或不值得理睬
>
> 他很自负, 好像不屑于做这种具体工作。

《规范》defines the two slightly differently while treating 不屑于 as a separate independent word and not a construct.

> **Comments:**
> **username_5**: I'm sorry but what is this 《规范》 you're talking about? Any source or reference?  
> **username_0**: Is 规范 a printed dictionary only? Seems that I could not get to any online dictionary with a quick Baidu search...  
> **username_4**: 《现代汉语规范词典》https://wapbaike.baidu.com/item/现代汉语规范词典/1567516?fr=aladdin  
> **username_0**: I still think these two mean practically the same thing, even if the actual definition uses the different sentences.  
> **username_4**: @username_0 The definitions do provide some insight. The added 于 gives the idea of thought or beliefe (认为) and the extra ‘to do’ (做) or ‘pay attention to’ (理睬). As opposed to the 于-less definition of only ‘not worth it’ (不值得). The inclusion of 不屑于 in the dictionary itself is also a point worth mentioning. GF isn’t going to include constructs (word + word) as entries in it’s dictionary. The thought pattern, logically, is that 不屑于 is a construct of 不屑 + 于 but the fact that they have put it in there as a single word shows that it is in fact its own word or word phrase.  

---

### Answer by username_6 on 2018-03-17. Score: 0

> 不屑于说英文了

于, refer to the definition in the dictionary:

> 　2. 后缀（ａ．在形容词后，如“疏～防范”；ｂ．在动词后，如“属～未来）。

The sentence can be paraphrasing as:

> 对于说英文很不屑

In this case, better not omit 于, as 于 here specifies the thing you disdain 不屑.


---

### Answer by username_7 on 2018-09-14. Score: 0

“于” It is combined with nouns, pronouns, or nominal phrases to form a referential structure, serving as an adverbial or complement in a sentence.
1.The introduction of premises relating to the act.
（1）Indicates where action occurs, occurs, or occurs.
（2）The place or source of the introduction of an action.The object structure of “于” is used as a complement after a verb or predicate.It can be translated as "从（cong）", "自（zi）" to "由（you）" and so on.
（3）The place where action is introduced.The object structure of “于” is used as a complement after a verb or predicate.It can be translated as "至（zhi）", "到（dao）" and so on.
2.Introduce time associated with action.
（1）Indicates when an action occurs or occurs."于" can be used as an adverbial before the verb, or as a complement after the verb.Can be translated as in.Indicates when an action occurs or occurs."于" can be used as an adverbial before the verb, or as a complement after the verb.Can be translated into “在”.
（2）Indicates when an action has been extended or terminated.The object structure of “于” is often used as a complement after the verb predicate.


---

