ISDK

What Does ISDK Mean in a Text?

The Quick Answer

ISDK means "I Simply Don't Know," "I Seriously Don't Know" or "I Still Don't Know."

More Detail...

The abbreviation ISDK has three similar, but distinct meanings. The actual meaning will always depend on context:

• I Simply Don't Know

  When used with the meaning "I Simply Don't Know," ISDSK indicates that the sender has absolutely no idea about what is being discussed. The word "Simply" emphasizes a complete lack of knowledge of the subject under discussion at that moment.

• I Seriously Don't Know

  When used with the meaning "I Seriously Don't Know," ISDSK has a very similar meaning to when it is used to mean "I Simply Don't Know." The word "Seriously" usually emphasizes a complete lack of knowledge. However, it may also emphasize that the sender is not joking or is not pretending to be ignorant of the facts.

• I Still Don't Know

  When used with the meaning "I Still Don't Know," ISDSK indicates that the sender has not been able to verify information or obtain an answer since the last conversation. In this case, the word "Still" emphasizes on ongoing lack of knowledge.

Image for ISDK

When I write ISDK, I mean this:

ISDK also means "I Seriously Don't Know" and "I Still Don't Know."

Summary of Key Points

First Definition for ISDK

ISDK means "I Simply Don't Know. This is the most common definition for ISDK in texting and on messaging apps like Instagram and TikTok.

ISDK
Definition:	I Simply Don't Know
Type:	Abbreviation
Guessability:	3: Guessable
Typical Users:	Adults and Teenagers

Second Definition for ISDK

ISDK also means "I Seriously Don't Know":

ISDK
Definition:	I Seriously Don't Know
Type:	Abbreviation
Guessability:	3: Guessable
Typical Users:	Adults and Teenagers

Third Definition for ISDK

ISDK also means "I Still Don't Know":

ISDK
Definition:	I Still Don't Know
Type:	Abbreviation
Guessability:	3: Guessable
Typical Users:	Adults and Teenagers

Examples of ISDK in Sentences

Here are examples of ISDK in conversations:

• Reg: If they love each other, why are they always fighting?
• Ronnie: ISDK.
(Here, ISDK could mean "I Simply Don't Know" or "I Seriously Don't Know.")

• Tom: You must know if you're going to be free tomorrow?
• Leslie: ISDK. It really depends on whether I can get this project finished today.
(Here, ISDK probably means "I Seriously Don't Know.")

• Linda: Do you know yet if you are going to be made redundant?
• Martin: ISDK.
(Here, ISDK probably means "I Still Don't Know.")

An Academic Look at ISDK

ISDK is an initialism abbreviation. Technically, this means it is pronounced using its individual letters (i.e., Eye Ess Dee Kay). However, it is not often uttered using its letters. In other words, the abbreviation WLTM is for efficiency in writing and not efficiency in speech. ISDK is typically used as a standalone declarative sentence (i.e., a statement). It is not normally used as another part of speech within a wider sentence.

What Did We Say before Texting and Social Media?

Before the digital era, we would have just said "I Simply Don't Know," "I Seriously Don't Know" or "I Still Don't Know" instead of using the abbreviation ISDK.

Example of ISDK Used in a Text

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